SCD1284 INTEL [Intel Corporation], SCD1284 Datasheet - Page 24

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

CD1284 — IEEE 1284-Compatible Parallel Interface Controller
4.0
4.1
24
CAR
GFRCR
GPDIR
GPIO
MICR
MIR
PIR
PPR
RICR
RIR
SVRR
TICR
TIR
MISR
MIVR
PIVR
RDSR
(data)
RDSR
(status
RIVR
TDR
TIVR
EOSRR
Name
Name
Name
Table 2.
Table 3.
Table 4.
)
Hex
Hex
4C
Hex
4F
7E
6B
6A
41
40
62
62
43
63
42
68
71
70
45
69
61
44
67
45
60
Register Summary
Register Summary Tables
Global Registers
Virtual Registers — Serial
Virtual Registers — Serial and Parallel
DMAREQ
Timeout
DSRch
MdIreq
PPIreq
Data 7
RxIreq
TxIreq
Bit 7
Bit 7
Dir 7
Bit 7
Poll
X
X
X
X
X
X
X
X
SC Det2
CTSch
Mdbusy
Rxbusy
Txbusy
Bit 6
Data 6
PPort
Bit 6
ExtM
Bit 6
Dir 6
X
Poll
X
X
X
X
X
X
X
SC Det1
Mdunfair
Rxunfair
Pipeline
Txunfair
Bit 5
RIch
Data 5
Bit 5
Bit 5
Dir 5
ExtT
X
X
X
X
Poll
X
X
X
X
Firmware Revision Code
Received Character
SC Det0
Transmit Character
CDch
Bit 4
8-Bit Binary Value
Data 4
Bit 4
Bit 4
Dir 4
ExtR
X
X
X
X
Poll
X
X
X
X
0
0
1
1
Break
Bit 3
Data 3
Bit 3
X
X
X
X
Bit 3
Dir 3
0
SRP
Poll
C1
C1
C1
X
1
0
1
0
Bit 2
IT2
IT2
IT2
IT2
PE
Data 2
0
Bit 2
SRM
Bit 2
Dir 2
C0
C0
C0
X
0
0
0
0
0
Bit 1
IT1
IT1
IT1
IT1
FE
Data 1
0
Bit 1
ch[1]
ch[1]
ch[1]
Bit 1
Dir 1
SRT
C1
X
X
X
X
0
Bit 0
IT0
IT0
OE
IT0
IT0
Data 0
0
Bit 0
ch[0]
ch[0]
SRR
ch[0]
Bit 0
Dir 0
C0
X
X
X
X
0
Datasheet
Page
114
114
115
115
115
116
117
117
Page
Page
108
108
109
109
109
110
111
111
112
112
112
113
113
118