PC87307VUL National Semiconductor, PC87307VUL Datasheet - Page 10

• Manufacturer Part Number: PC87307VUL
• Description: PC87307/PC97307 Plug and Play Compatible and PC97 Compliant SuperI/O
• Manufacturer: National Semiconductor

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7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.2.3
REGISTER BANK OVERVIEW ............................................................................................... 136
UART MODES – DETAILED DESCRIPTION .......................................................................... 136
7.4.1
7.4.2
SHARP-IR MODE – DETAILED DESCRIPTION ..................................................................... 138
SIR MODE – DETAILED DESCRIPTION ................................................................................ 138
CONSUMER-IR MODE – DETAILED DESCRIPTION ............................................................ 138
7.7.1
7.7.2
FIFO TIME-OUTS .................................................................................................................... 139
7.8.1
7.8.2
7.8.3
AUTOMATIC FALLBACK TO A NON-EXTENDED UART MODE .......................................... 140
OPTICAL TRANSCEIVER INTERFACE ................................................................................. 140
BANK 0 – GLOBAL CONTROL AND STATUS REGISTERS ................................................. 140
7.11.1
7.11.2
7.11.3
7.11.4
7.11.5
7.11.6
7.11.7
7.11.8
7.11.9
7.11.10 Scratchpad Register (SPR), Bank 0, Offset 07h ....................................................... 150
7.11.11 Auxiliary Status and Control Register (ASCR), Bank 0, Offset 07h ........................... 150
7.11.12 Legacy Baud Generator Divisor Ports (LBGD(L) and LBGD(H)),
7.11.13 Link Control Register (LCR) and Bank Select Register (BSR), Bank 1, Offset 03h .. 152
BANK 2 – EXTENDED CONTROL AND STATUS REGISTERS ............................................ 152
7.12.1
7.12.2
7.12.3
7.12.4
7.12.5
7.12.6
7.12.7
BANK 3 – MODULE REVISION ID AND SHADOW REGISTERS .......................................... 156
7.13.1
7.13.2
Consumer IR Mode ................................................................................................... 135
16450 or 16550 UART Mode ..................................................................................... 137
Extended UART Mode ............................................................................................... 137
Consumer-IR Transmission ....................................................................................... 138
Consumer-IR Reception ............................................................................................ 138
UART, SIR or Sharp-IR Mode Time-Out Conditions ................................................. 139
Consumer-IR Mode Time-Out Conditions ................................................................. 139
Transmission Deferral ............................................................................................... 139
Receiver Data Port (RXD) or the Transmitter Data Port (TXD), Bank 0, Offset 00h . 141
Interrupt Enable Register (IER), Bank 0, Offset 01h ................................................. 141
Event Identification Register (EIR), Bank 0, Offset 02h ............................................. 143
FIFO Control Register (FCR), Bank 0, Offset 02h ..................................................... 145
Link Control Register (LCR), Bank 0, Offset 03h, and Bank Selection Register (BSR),
Bank Selection Register (BSR), All Banks, Offset 03h .............................................. 147
Modem/Mode Control Register (MCR), Bank 0, Offset 04h ...................................... 147
Link Status Register (LSR), Bank 0, Offset 05h ........................................................ 148
Modem Status Register (MSR), Bank 0, Offset 06h .................................................. 149
Baud Generator Divisor Ports, LSB (BGD(L)) and
Extended Control Register 1 (EXCR1), Bank 2, Offset 02h ...................................... 154
Link Control Register (LCR) and Bank Select Register (BSR), Bank 2, Offset 03h .. 155
Extended Control and Status Register 2 (EXCR2), Bank 2, Offset 04h .................... 155
Reserved Register, Bank 2, Offset 05h ..................................................................... 155
TX_FIFO Current Level Register (TXFLV), Bank 2, Offset 06h ................................ 155
RX_FIFO Current Level Register (RXFLV), IrDA or Consumer-IR Modes,
Module Revision ID Register (MRID), Bank 3, Offset 00h ......................................... 156
Shadow of Link Control Register (SH_LCR), Bank 3, Offset 01h .............................. 157
All Banks, Offset 03h ........................................................................................... 145
Bank 1, Offsets 00h and 01h ............................................................................... 151
MSB (BGD(H)),Bank 2, Offsets 00h and 01h ...................................................... 152
Bank 2, Offset 07h .............................................................................................. 156
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