
P R E L I M I N A R Y | AMD  | 
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LED Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
RESET Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
RESET Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
SWRESET (SIR0[7]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
CORESET (SIR0[6]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
PCMCIA COR SRESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
ISA PnP RESET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
SRES (TIR0[5]) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
REGISTER DESCRIPTIONS | 75  | 
System Interface Registers (SIR space)  | 76  | 
SIR0: General Configuration Register (GCR)  | 77  | 
SIR1: Bank Switching Select Register (BSS)  | 78  | 
SIR2: Local Memory Address Register [7:0] (LMA)  | 79  | 
SIR3: Local Memory Address Register [14:8] (LMA)  | 79  | 
SIR4: I/O Data Port A (IODPA)  | 79  | 
SIR5: I/O Data Port B (IODPB)  | 80  | 
SIR6: I/O Data Port C (IODPC)  | 80  | 
SIR7: I/O Data Port D (IODPD)  | 80  | 
MAC Interface Registers (MIR Space)  | 80  | 
MIR0: Processor Interface Register (PIR)  | 80  | 
MIR1: Power Up Clock Time [3:0] (PUCT)  | 81  | 
MIR2: Power Down Length Count [7:0] (PDLC)  | 81  | 
MIR3: Power Down Length Count [15:8] (PDLC)  | 81  | 
MIR4: Power Down Length Count [22:16] (PDLC)  | 82  | 
MIR5: Free Count [7:0] (FCNT)  | 82  | 
MIR6: Free Count [15:8] (FCNT)  | 82  | 
MIR7: Free Count [23:16] (FCNT)  | 82  | 
MIR8: Flash Wait States  | 82  | 
MIR9: TCR Mask STSCHG Data  | 83  | 
MIR10: Reserved  | 85  | 
MIR11: Reserved  | 85  | 
MIR12: Reserved  | 85  | 
MIR13: Reserved  | 85  | 
MIR14: Reserved  | 85  | 
MIR15: Reserved  | 85  | 
Transceiver Attachment Interface Registers (TIR Space)  | 86  | 
TIR0: Network Control  | 89  | 
TIR1: Network Status  | 89  | 
TIR2: Serial Device  | 90  | 
TIR3: Fast Serial Port Control  | 91  | 
TIR4: Interrupt Register 1  | 91  | 
TIR5: Interrupt Register  | 92  | 
TIR6: Interrupt Unmask Register 1  | 93  | 
TIR7: Interrupt Unmask Register 2  | 93  | 
TIR8: Transmit Control  | 94  | 
TIR9: Transmit Status  | 94  | 
Am79C930  | 9  |