PC87338 、PC97338笔记本电脑I、O控制芯片
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Serial Interface
General Chip Select
Configuration Registers Interrupt and DMA
SCC1
(16550 UART)
SCC2
(16550 UART + INFRARED)
Microprocessor Address Data and Control Plug and Play Support PowerDown Logic IEEE1284 Parallel Port High Current Driver
DACK0 DACK1 IOCHRDY
IRQ11
IRQ10
DCD1
DSR1
SIN1
VSS
IRQ9 DRQ0
CTS1
RI1
DRATE0/MSEN0 DRA TE1/MSEN1/CS0/SIRQI2/DACK3 VDD DRV2/PNF/DR23/SIRQI3/IRSL2 DENSEL/ADRATE1 INDEX MTR0 DR1/PD DR0 MTR1/IDLE/IRSL2 VSS DIR STEP WDATA WGATE TRK0 WP RDATA HDSEL DRQ1 DSKCHG A10 A0 A1 A2
PC97338VLJ
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 IRQ3 MR CS1/ZWS DRQ2 DACK2 TC X1 IRSL1/ID1 VSS D7 D6 D5 D4 D3 D2 D1 D0 WR RD AEN A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
PC87338 、PC97338
PC87338 、PC97338是笔记本电脑的I/O控制芯片。 PC87338 、PC97338的内部电路框图
Configuration Input Signals Serial Fast IR Interface Interface
CS1,0
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 81 50 82 49 83 48 84 47 85 46 86 45 87 44 88 43 89 42 90 41 91 40 92 39 93 38 94 37 95 36 96 35 97 34 98 33 99 32 100 31
PC87338VJG
38 37 36 35 34 33 32 31 30 29 28 27
100 1 CS1/ZWS
2 DRQ2
3 DACK2
4 TC
5 X1
6 IRSL1
7 VSS
8 D7
26 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 A9 A8 A7 D6 D5 D4 D3 D2 D1 D0 AEN WR RD A6
RTS2/A14
DTR2/A12 RI2/A11
IRQ15/SIRQI1/DRQ3
DTR1
AFD/DSTRB/DENSEL ERR/HDSEL INIT/DIR SLIN/STEP/ASTRB SLCT/WGATE PE/WDATA BUSY/WAIT/MTR1 ACK/DR1 PD7/MSEN1 PD6/DRATE0 PD5/MSEN0 PD4/DSKCHG VSS PD3/RDATA PD2/WP PD1/TRK0 PD0/INDEX STB/WRITE IRQ7 IRQ6 IRQ5/ADRATE0 VDD IRQ4 IRQ3 MR
DTR2/A12/BOUT2 RI2/A11 VSS IRQ15/SIRQI1/DRQ3 IRQ11 IRQ10 IRQ9
Floppy Disk Controller (FDC) with Digital Data Separator (DDS) Floppy Drive Interface (Enhanced 8477) Floppy Drive Interface
DMA IRQ IRQ Input Signals Channels
A5 DRQ0 A4 DACK0 A3 DACK1 IOCHRDY DRATE0/MSEN0 DRATE1/MSEN1/CS0/SIRQI2/DACK3 VDD DRV2/PNF/DR23/SIRQI3/IRSL2/ID2 DENSEL/ADRATE1 INDEX MTR0 DR1/PD DR0 MTR1/IDLE/IRSL2/ID2 VSS DIR STEP WDATA WGATE TRK0 WP RDATA HDSEL DRQ1 DSKCHG A10
SLIN/STEP/ASTRB SLCT/WGATE PE/WDATA BUSY/WAIT/MTR1 ACK/DR1 PD7/MSEN1 PD6/DRATE0 PD5/MSEN0 PD4/DSKCHG VSS PD3/RDATA PD2/WP PD1/TRK0 PD0/INDEX STB/WRITE IRQ7 IRQ6 IRQ5/ADRATE0 VDD IRQ4
76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39
INIT/DIR ERR/HDSEL AFD/DSTRB/DENSEL DCD1 DSR1 SIN1 RTS1/BADDR0 SOUT1/BADDR1 CTS1 DTR1/BOUT1 RI1 DCD2/A15 DSR2/IRQ12/IRRX2/IRSL0ID0 SIN2/IRRX1 RTS2/A14 SOUT2/CFG0/IRTX CTS2/A13
INIT/DIR ERR/HDSEL AFD/DSTRB/DENSEL DCD1 DSR1 SIN1 RTS1/BADDR0 SOUT1/BOUT1/BADDR1 CTS1 DTR1 RI1 DCD2/A15 DSR2/IRQ12/IRRX2/IRSL0 SIN2/IRRX1 RTS2/A14 SOUT2/BOUT2/CFG0/IRTX CTS2/A13 SLIN/STEP/ASTRB SLCT/WGATE PE/WDATA BUSY/WAIT/MTR1 ACK/DR1 PD7/MSEN1 PD6/DRATE0 PD5/MSEN0 PD4/DSKCHG VSS PD3/RDATA PD2/WP PD1/TRK0 PD0/INDEX STB/WRITE IRQ7 IRQ6 IRQ5/ADRATE0 VDD IRQ4
PC87338VLJ
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 IRQ3 MR CS1/ZWS DRQ2 DACK2 TC X1 IRSL1 VSS D7 D6 D5 D4 D3 D2 D1 D0 WR RD AEN A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
DTR2/A12 RI2/A11 VSS IRQ15/SIRQI1/DRQ3 IRQ11 IRQ10 IRQ9
DSR2/IRQ12/IRRX2/IRSL0
SOUT1/BOUT1/BADDR1
SOUT2/BOUT2/CFG0/IRTX
RTS1/BADDR0
DCD2/A15
SIN2/IRRX1
CTS2/A13
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 81 50 82 49 83 48 84 47 85 46 86 45 87 44 88 43 89 42 90 41 91 40 92 39 93 38 94 37 95 36 96 35 97 34 98 33 99 32 100 31
Control Data Handshake
PC87338 、PC97338的针脚封装图
DRQ0 DACK0 DACK1 IOCHRDY DRATE0/MSEN0 DRATE1/MSEN1/CS0/SIRQI2/DACK3 VDD DRV2/PNF/DR23/SIRQI3/IRSL2 DENSEL/ADRATE1 INDEX MTR0 DR1/PD DR0 MTR1/IDLE/IRSL2 VSS DIR STEP WDATA WGATE TRK0 WP RDATA HDSEL DRQ1 DSKCHG A10