Datasheet
9
IEEE 1284-Compatible Parallel Interface Controller
—
CD1284
Tables
1
2
3
4
5
6
Pin Descriptions ..................................................................................................20
Global Registers..................................................................................................24
Virtual Registers
—
Serial...................................................................................24
Virtual Registers
—
Serial and Parallel...............................................................24
Channel Registers
—
Serial................................................................................25
Channel Registers
—
Parallel Pipeline
(Selected by Channel 0 in CAR) .........................................................................26
Channel Registers
—
Parallel Port
(Selected by Channel 0 in CAR) .........................................................................26
Global Registers..................................................................................................27
Virtual Registers..................................................................................................27
Virtual Registers
—
Serial and Parallel...............................................................28
Channel Registers
—
Serial................................................................................28
Channel Registers
—
Parallel Pipeline
(Selected by Channel 0 in CAR) .........................................................................29
Channel Registers
—
Parallel Port
(Selected by Channel 0 in CAR) .........................................................................29
Request-Type Bit Assignments...........................................................................38
CCSR[6:5] Encoding...........................................................................................56
CCSR[2:1] Encoding...........................................................................................57
COR Control Bits.................................................................................................58
Out-of-Band Pin Connections..............................................................................59
Modem Control Pin Functions.............................................................................60
Signal Names......................................................................................................77
System Clock Settings ........................................................................................83
Baud Rate Constants
—
CLK = 25 MHz...........................................................103
Baud Rate Constants
—
CLK = 20.2752 MHz..................................................104
Baud Rate Constants
—
CLK = 20.00 MHz......................................................104
Baud Rate Constants
—
CLK = 18.432 MHz....................................................105
Baud Rate Constants
—
CLK = 16 MHz...........................................................105
Asynchronous Timing Reference Parameters...................................................157
Synchronous Timing Reference Parameters ....................................................164
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28