SCD1284 INTEL [Intel Corporation], SCD1284 Datasheet - Page 27

• Manufacturer Part Number: SCD1284
• Description: IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports
• Manufacturer: INTEL [Intel Corporation]

4.2
Datasheet
SPR
SSR
ZDR
CAR
GFRCR
GPDIR
GPIO
MICR
MIR
PIR
PPR
RICR
RIR
SVRR
TICR
TIR
MISR
MIVR
PIVR
RDSR
RDSR
(status
RIVR
TDR
TIVR
Name
Name
Name
Table 7. Channel Registers — Parallel Port
Table 8. Global Registers
Table 9. Virtual Registers
)
(data)
Hex
2C
2F
26
Reset
(Selected by Channel 0 in CAR) (Sheet 2 of 2)
Register Usage
Table 8
Reset
Bit 7
0
0
Parallel Init
through
Parallel Init
Bit 6
Table 13
0
0
Parallel Tx
present register tunctionality.
IEEE 1284-Compatible Parallel Interface Controller — CD1284
Bit 5
0
0
Parallel Tx
Parallel Rx
8-Bit Binary Value
Bit 4
0
0
Parallel Rx
Serial Init
A1284
A1284
Bit 3
Serial Init
Bit 2
nInit
nInit
Serial Tx
HstBsy
HstBsy
Bit 1
Serial Tx
Serial Rx
HstClk
HstClk
Bit 0
Serial Rx
GPIO Pin
Control
Page
153
154
154
27