w83977atf Winbond Electronics Corp America, w83977atf Datasheet - Page 45

• Manufacturer Part Number: w83977atf
• Description: Winbond I/o
• Manufacturer: Winbond Electronics Corp America

2.2 REGISTER DESCRIPTIONS...................................................................................................................31
3.0 UART PORT.................................................................................................................42
3.1 UNIVERSAL ASYNCHRONOUS RECEIVER/TRANSMITTER (UART A, UART B) ............................42
3.2 REGISTER ADDRESS .............................................................................................................................42
4.0 INFRARED (IR) PORT ..............................................................................................51
4.1 IR REGISTER DESCRIPTION ................................................................................................................51
4.2 SET0-LEGACY/ADVANCED IR CONTROL AND STATUS REGISTERS............................................52
2.2.1 Status Register A (SA Register) (Read base address + 0) ...................................................................31
2.2.2 Status Register B (SB Register) (Read base address + 1) ...................................................................33
2.2.3 Digital Output Register (DO Register) (Write base address + 2)........................................................35
2.2.4 Tape Drive Register (TD Register) (Read base address + 3) ..............................................................35
2.2.5 Main Status Register (MS Register) (Read base address + 4).............................................................36
2.2.6 Data Rate Register (DR Register) (Write base address + 4)...............................................................36
2.2.7 FIFO Register (R/W base address + 5) ..............................................................................................38
2.2.8 Digital Input Register (DI Register) (Read base address + 7) ............................................................40
2.2.9 Configuration Control Register (CC Register) (Write base address + 7) ............................................41
3.2.1 UART Control Register (UCR) (Read/Write).......................................................................................42
3.2.2 UART Status Register (USR) (Read/Write)..........................................................................................44
3.2.3 Handshake Control Register (HCR) (Read/Write) ...............................................................................45
3.2.4 Handshake Status Register (HSR) (Read/Write) ..................................................................................46
3.2.5 UART FIFO Control Register (UFR) (Write only)...............................................................................47
3.2.6 Interrupt Status Register (ISR) (Read only) .........................................................................................48
3.2.7 Interrupt Control Register (ICR) (Read/Write)....................................................................................49
3.2.8 Programmable Baud Generator (BLL/BHL) (Read/Write)...................................................................49
3.2.9 User-defined Register (UDR) (Read/Write) .........................................................................................50
4.2.1 Set0.Reg0 - Receiver/Transmitter Buffer Registers (RBR/TBR) (Read/Write) .....................................52
4.2.2 Set0.Reg1 - Interrupt Control Register (ICR).....................................................................................53
4.2.3 Set0.Reg2 - Interrupt Status Register/IR FIFO Control Register (ISR/UFR).......................................54
4.2.4 Set0.Reg3 - IR Control Register/Set Select Register (UCR/SSR): .......................................................57
4.2.5 Set0.Reg4 - Handshake Control Register (HCR) ................................................................................58
4.2.6 Set0.Reg5 - IR Status Register (USR).................................................................................................60
4.2.7 Set0.Reg6 - Reserved.........................................................................................................................60
4.2.8 Set0.Reg7 - User Defined Register (UDR/AUDR) ..............................................................................61
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Publication Release Date:April 1998
W83977ATF
PRELIMINARY
Revision 0.52