Intel UPI-L42 manual

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UPI-C42/UPI-L42 Table 1. Pin Description DIP PLCC QFP Symbol Pin Pin Pin Type Name and Function No. No. No. TEST 0, 1 2 18 I TEST INPUTS: Input pins which can be directly tested using conditional branch instructions. TEST 1 39 43 16 FREQUENCY REFERENCE: TEST 1 (T 1 ) functions as the event timer input (under software control). TEST 0 (T 0 ) is a mu[...]

UPI-C42/UPI-L42 Table 1. Pin Description (Continued) DIP PLCC QFP Symbol Pin Pin Pin Type Name and Function No. No. No. P 20 –P 27 2 1–2 4 2 4–2 7 3 9–4 2 I / O PORT 2: 8-bit, PORT 2 quasi-bidirectional I/O lines. The lower 4 bits (P 20 –P 23 ) interface directly to the 8243 I/O expander device and 3 5–3 8 3 9–4 2 1 1 , 1 3–1 5 cont[...]

UPI-C42/UPI-L42 UPI-C42/L42 PRODUCT SELECTION GUIDE UPI-C42: Low power CHMOS version of the UPI-42. Device Package ROM OTP Comments 80C42 N, P S 4K ROM Device 82C42PC N, P, S Phoenix MultiKey/42 firmware, PS/2 style mouse support 82C42PD N, P, S Phoenix MultiKey/42L firmware, KBC and SCC for portable apps. 82C42PE N, P, S Phoenix MultiKey/42G firmw[...]

UPI-C42/UPI-L42 UPI-42 COMPATIBLE FEATURES 1. Two Data Bus Buffers, one for input and one for output. This allows a much cleaner Master/Slave protocol. 290414 – 5 2. 8 Bits of Status ST 7 ST 6 ST 5 ST 4 F 1 F 0 IBF OBF D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 ST 4 –S T 7 are user definable status bits. These bits are defined by the ‘‘MOV STS, A’?[...]

UPI-C42/UPI-L42 If ‘‘EN DMA’’ has been executed, P 27 becomes the DACK (DMA ACKnowledge) pin. This pin acts as a chip select input for the Data Bus Buffer registers during DMA transfers. EN DMA Op Code: 0E5H 1 110010 1 D 7 D 0 6. When EA is enabled on the UPI, the program counter is placed on Port 1 and the lower four bits of Port 2 (MSB e [...]

UPI-C42/UPI-L42 thereby providing additional user programmable memory space. This feature is enabled by the A20EN instruction and remains enabled until the de- vice is reset. It is important to note that the execu- tion of the A20EN instruction redefines Port 2, bit 1 as a pure output pin with read only characteristics. The state of this pin can be[...]

UPI-C42/UPI-L42 Table 2 covers all suspend mode pin states. In addi- tion to the suspend power down mode, the UPI-C42 will also support the NMOS power down mode as outlined in Chapter 4 of the UPI-42AH users manual. Table 2. Suspend Mode Pin States Pins Suspend Ports 1 and 2 Outputs Tristate Inputs Weak Pull-Up Disabled DBB (1) Outputs Normal Input[...]

UPI-C42/UPI-L42 This circuitry gives the host direct control of port 2 bit 1 (P2.1) without intervention by the internal CPU. When this opcode is executed, P2.1 becomes a ded- icated output pin. The status of this pin is read-able but can only be altered through a valid ‘‘D1’’ com- mand sequence (see Table 1). SUSPEND Invoke Suspend Power D[...]

UPI-C42/UPI-L42 290414 – 14 Figure 6. Quick-Pulse Programming Algorithm Quick-Pulse Programming Algorithm As previously stated, the UPI-C42 will be pro- grammed using the Quick-Pulse Programming Algo- rithm, developed by Intel to substantially reduce the thorughput time in production programming. The Quick-Pulse Programming Algorithm uses initial[...]

UPI-C42/UPI-L42 b. Apply access code to appropriate inputs to put the device into security mode. c. Apply high voltage to EA and V DD pins. d. Follow the programming procedure as per the Quick-Pulse Programming Algorithm with known data on the databus. Not only the security bit, but also the security byte of the signature row is pro- grammed. e. Ve[...]

UPI-C42/UPI-L42 Table 3. Signature Mode Table Address Device No. of Type Bytes Test Code/Checksum 0 0FH ROM/OTP 25 16H 1EH Intel Signature 10H 11H ROM/OTP 2 User Signature 12H 13H OTP 2 Test Signature 14H 15H ROM/OTP 2 Security Byte 1FH or 3FH ROM/OTP 2 UPI-C42 Intel Signature 20H 21H ROM/OTP 2 User Defined UPI-C42 OTP EPROM Space 22H 3EH ROM/OTP 3[...]

UPI-C42/UPI-L42 SYNC MODE TIMING DIAGRAMS 290414 – 15 Minimum Specifications SYNC Operation Time, t SYNC e 3.5 XTAL 2 Clock cycles. Reset Time, t RS e 4t CY . NOTE: The rising and falling edges of T0 should occur during low state of XTAL 2 clock. APPLICATIONS 290414 – 12 Figure 7. UPI-C42 Keyboard Controller 290414 – 9 Figure 8. 8088-UPI-C42 [...]

UPI-C42/UPI-L42 APPLICATIONS (Continued) 290414 – 10 Figure 9. 8048H-UPI-C42 Interface 290414 – 11 Figure 10. UPI-C42-8243 Keyboard Scanner 290414 – 13 Figure 11. UPI-C42 80-Column Matrix Printer Interface 14[...]

UPI-C42/UPI-L42 ABSOLUTE MAXIMUM RATINGS * Ambient Temperature Under Bias ÀÀÀÀ0 § Ct o a 70 § C Storage Temperature ÀÀÀÀÀÀÀÀÀÀ b 65 § Ct o a 150 § C Voltage on Any Pin with Respect to Ground ÀÀÀÀÀÀÀÀÀÀÀÀÀÀ b 0.5V to a 7V Power Dissipation ÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀÀ1.5 W NOTICE: This is a produ[...]

UPI-C42/UPI-L42 DC CHARACTERISTICS T A e 0 § Ct o a 70 § C, V CC e V DD ea 5V g 10%; a 3.3V g 10% UPI-L42 (Continued) Symbol Parameter UPI-C42 UPI-L42 Units Notes Min Max Min Max I CC a I DD Total Supply Current: Active Mode @ 12.5 MHz 30 20 mA Typical 14 mA UPI-C42, 9 mA UPI-L42 Suspend Mode 40 26 m A Osc. Off (1, 4) I DD Standby Power Down 5 3.[...]

UPI-C42/UPI-L42 AC CHARACTERISTICS T A e 0 § Ct o a 70 § C, V SS e 0V, V CC e V DD ea 5V g 10%; a 3.3V g 10% for the UPI-L42 NOTE: All AC Characteristics apply to both the UPI-C42 and UPI-L42 DBB READ Symbol Parameter Min Max Units t AR CS, A 0 Setup to RD v 0n s t RA CS, A 0 Hold After RD u 0n s t RR RD Pulse Width 160 ns t AD CS, A 0 to Data Ou[...]

UPI-C42/UPI-L42 AC CHARACTERISTICS T A e 0 § Ct o a 70 § C, V SS e 0V, V CC e V DD ea 5V g 10%; a 3.3V g 10% for the UPI-L42 (Continued) CLOCK Symbol Parameter Min Max Units t CY UPI-C42/UPI-L42 Cycle Time 1.2 9.20 m s (1) t CYC UPI-C42/UPI-L42 Clock Period 80 613 ns t PWH Clock High Time 30 ns t PWL Clock Low Time 30 ns t R Clock Rise Time 10 ns[...]

UPI-C42/UPI-L42 AC CHARACTERISTICSÐPROGRAMMING (UPI-C42 AND UPI-L42) T A e 25 § C g 5 § C, V CC e 6.25V g 0.25V, V DDL ea 5V g 0.25V, V DDH e 12.75V g 0.25V (87C42/87L42 ONLY) Symbol Parameter Min Max Units t AW Address Setup Time to RESET u 4t CY t WA Address Hold Time after RESET u 4t CY t DW Data in Setup Time to PROG v 4t CY t WD Data in Hol[...]

UPI-C42/UPI-L42 DRIVING FROM AN EXTERNAL SOURCE 290414 – 18 NOTE: See XTAL1 Configuration Table. 290414 – 19 Rise and Fall Times Should Not Exceed 10 ns. Resistors to V CC are Needed to Ensure V IH e 3.5V if TTL Circuitry is Used. LC OSCILLATOR MODE L C NOMINAL f e 1 2 q 0 LC Ê 45 H 20 pF 5.2 MHz 120 H 20 pF 3.2 MHz C Ê e C a 3Cpp 2 Cpp j 5?[...]

UPI-C42/UPI-L42 WAVEFORMS READ OPERATIONÐDATA BUS BUFFER REGISTER 290414 – 22 WRITE OPERATIONÐDATA BUS BUFFER REGISTER 290414 – 23 CLOCK TIMING 290414 – 24 21[...]

UPI-C42/UPI-L42 WAVEFORMS (Continued) COMBINATION PROGRAM/VERIFY MODE 290414 – 25 NOTES: 1. A 0 must be held low (0V) during program/verify modes. 2. For V IH ,V IH1 ,V IL ,V IL1 ,V DDH , and V DDL , please consult the D.C. Characteristics Table. 3. When programming the 87C42, a 0.1 m F capacitor is required across V DD and ground to suppress spu[...]

UPI-C42/UPI-L42 WAVEFORMS (Continued) DMA 290414 – 27 PORT 2 290414 – 28 PORT TIMING DURING EXTERNAL ACCESS (EA) 290414 – 29 On the Rising Edge of SYNC and EA is Enabled, Port Data is Valid and can be Strobed. On the Trailing Edge of Sync the Program Counter Contents are Available. 23[...]

UPI-C42/UPI-L42 Table 4. UPI Instruction Set Mnemonic Description Bytes Cycles ACCUMULATOR ADD A, Rr Add register to A 1 1 ADD A, @ Rr Add data memory 1 1 to A ADD A, Ý data Add immediate to A 2 2 ADDC A, Rr Add register to A 1 1 with carry ADDC A, @ Rr Add data memory 1 1 to A with carry ADDC A, Ý data Add immediate 2 2 to A with carry ANL A, Rr[...]

UPI-C42/UPI-L42 Table 4. UPI Instruction Set (Continued) Mnemonic Description Bytes Cycles CONTROL (Continued) * SUSPEND Invoke Suspend Power- 1 2 down mode NOP No Operation 1 1 REGISTERS INC Rr Increment register 1 1 INC @ Rr Increment data 1 1 memory DEC Rr Decrement register 1 1 SUBROUTINE CALL addr Jump to subroutine 2 2 RET Return 1 2 RETR Ret[...]