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PC87570-ICC/VUL 数据表(PDF) 24 Page - National Semiconductor (TI) |
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PC87570-ICC/VUL 数据表(HTML) 24 Page - National Semiconductor (TI) |
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24 / 168 page  Signal/Pin Connection and Description 24 www.national.com KBSIN7-0 27-34 29-36 CMOSS-PU - Internal Keyboard Input scan lines KBSOUT15-0 35-50 37-42, 47-56 - OD Internal Keyboard Output scan lines PA6-0 121, 120, 9, 8, 149, 148, 143, 135, 130, 11, 10, 163, 162, 157 TTL-PU CM-PU Port A, bits 0 through 6 PB7-0 72-65 78-71 TTL-PU CM-PU Port B, bits 0 through 7 PC2-0 57-55 63-61 TTL-PU CMHD1-PU Port C, bits 0 through 2 high drive output buffers PC7-3 64-62, 59, 58 70-68, 65, 64 TTL-PU CM-PU Port C, bits 3 through 7 PD7-0 84, 83, 80-75 94, 93, 86-81 TTL - Port D, bits 0 through 7, input port only PE1,0 122, 10 136, 12 TTL-PU CM-PU Port E, bits 0 through 1 PF7-0 138-131 152-145 TTL CM Port F, bits 0 through 7 PFAIL 73 79 CMOSS - Power Fail. Non-maskable interrupt input detected PFS 91 101 - CM Pipe Flow Status signal PG4-0 103, 96, 97, 119, 100 113, 106, 107, 129, 110 TTL CM Port G, bits 0 through 4 PH5-0 89-94 99-104 TTL CM Port H, bits 0 through 5 PLI 90 100 - CM Pipe Long Instruction signal PSCLK11 52 58 TTL-PU CMHD1-PU1 PS/2 Channel 1 Clock signal PSCLK21 54 60 TTL-PU CMHD1-PU1 PS/2 Channel 2 Clock signal PSCLK31 64 70 TTL-PU CMHD1-PU1 PS/2 Channel 3 Clock signal PSDAT11 51 57 TTL-PU CMHD1-PU1 PS/2 Channel 1 Data signal PSDAT21 53 59 TTL-PU CMHD1-PU1 PS/2 Channel 2 Data signal PSDAT31 63 69 TTL-PU CMHD1-PU1 PS/2 Channel 2 Data signal RD 101 111 - CMHD Read control signal. May be used as Output Enable. RING 65 71 CMOSS - Advanced Power Control Ring detect and wake- up input SCL 66 72 CMOSS-PU OD-PU ACCESS.bus Serial Clock signal SDA 67 73 CMOSS-PU OD-PU ACCESS.bus Serial Data signal SEL0 95 105 - CM Zone Select 0. Chip-select signal for the Exter- nal Memory. SEL1 96 106 - CM Zone Select 1. Used to select the off-chip Base Memory. SELIO 100 110 - CM I/O Expansion chip-select signal SHBM 122 136 STRAP - Shared host BIOS Memory. Enable when 0 SWIN 72 78 STRAP - On switch to the MIWU and ICU TA 68 74 TTL CM Timer pin A Signal Pin Number Buffer Type Function 160-pin 176-pin Input Output |
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