GM82C803CN Datasheet, PDF (18/84 Pages) List of Unclassifed Manufacturers – 2.88 MB FDC/ Dual UARTs with FIFO/PIO(EPP/ ECP)/ IDE Interface/ S-IR/ PnP

GM82C803CN
GM82C803CN Configuration Registers
Index
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
CA
CB
CC
CD
Default Bit 7
Bit 6 Bit 5 Bit 4
Bit 3
Bit 2
Bit 1
3C
Device ID (3C)
00
Revision number (00)
03
GCS/
PWRGDS
Reserved
IDE
FDC UART2 UART1 PIO 1
3C
FDC Address ADR[9:4]
0
3C
IDE Base Address ADR[9:4]
0
3D
IDE Status Address ADR[9:4]
0
00
Parallel port Base Address ADR[9:2]
00
First Serial port Base Address ADR[9:3]
00
Second Serial port Base Address ADR[9:3]
00
FDC DRQ
Parallel port DRQ
00
FDC IRQ
00
Serial 1 IRQ
Parallel port IRQ
Serial 2 IRQ
00
Reserved
00
Reserved
IRQ IN IRQ
Bit 0
PIO 2
0
0
1
0
0
UART2 UART1
CE
00
Speed Speed
UART2 Mode
UART2
Duplex
UART2
XMIT
Polarity
UART2
RCV
Polarity
CF
00
D0
00
D1
00
D2
00
D3
00
D4
00
D5
3C
D6
00
D7
00
D8
00
Reserved
Power Down mode
ECP Mode
Reserved
Reserved
UART 1,2 mode ALT I/O ^{MIDI 2}
Test Mode register 1
MIDI 1
Reserved
PLL lock Bypass Reserved
Test Mode register 3
GAME CS ADR[9:4]
GAME CS Config.
ADRx-IRQ_B
ADRx Config Reserved
General Purpose Address ADR[10:4]
FDC mode
0
FDD 3 -DTx
FDD 2 -DTx
FDD 1-DTx
FDD 0 -DTx