Instruction/ maintenance manual of the product UPI-C42 Intel
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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).
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.
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.
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.
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.
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.
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.
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).
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.
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.
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.
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/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/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.
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.
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 RE.
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.
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.
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.
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.
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.
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 AD.
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 Incre.
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If you already are a holder of Intel UPI-C42, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Intel UPI-C42.
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