Zilog Z16C30 User Manual
Page 39
2-13
Z16C30 USC
®
U
SER
'
S
M
ANUAL
Z
ILOG
UM97USC0100
Table 2-2. USC Registers, in Alphabetical Order
CCAR6-0 Indirect Address
Channel A
Reg
or Channel B Direct Address
Direct Address:
Register Name
Acronym
Addr
16-bit data
8-bit data
16-bit data
8-bit data
Channel Command/Address
CCAR
00000
0/0
64,65/40,1
128/80
192,3/C0,1
Channel Command/Status
CCSR
00010
4/4
68,9/44,5
132/84
196,7/C4,5
Channel Control
CCR
00011
6/6
70,1/46,7
134/86
198,9/C6,7
Channel Mode
CMR
00001
2/2
66,7/42,3
130/82
194.5/C2,3
Clock Mode Control
CMCR
01000
16/10
80,1/50,1
144/90
208,9/D0,1
Daisy-Chain Control
DCCR
01101
26/1A
90,1/5A,B
154/9A
218,9/DA,B
Hardware Configuration
HCR
01001
18/12
82,3/52,3
146/92
210,1/D2,3
Input/Output Control
IOCR
01011
22/16
86,7/56,7
150/96
214,5/D6,7
Interrupt Control
ICR
01100
24/18
88,9/58,9
152/98
216,7/D8.9
Interrupt Vector
IVR
01010
20/14
84,5/54,5
148/94
212,3/D4,5
Miscellaneous Interrupt Status
MISR
01110
28/1C
92,3/5C,D
156/9C
220,1/DC,D
Receive Character Count
RCCR
10110
44/2C
108,9/6C,D
172/AC
236,7/EC,D
Receive Command/Status
RCSR
10010
36/24
100,1/64,5
164/A4
228,9/E4,5
Receive Count Limit
RCLR
10101
42/2A
106,7/6A,B
170/AA
234,5/EA,B
Receive Data
RDR
1x000
32/20
96/60 or 97/61
160/A0
224/E0 or
(Read only; TDR for Write)
225/E1
Receive Interrupt Control
RICR
10011
38/26
102,3/66,7
166/A6
230,1/E6,7
Receive Mode
RMR
10001
34/22
98,9/62,3
16 /A2
226,7/E2,3
Receive Sync
RSR
10100
4 /28
104,5/68,9
168/A8
232,3/E8,9
Status Interrupt Control
SICR
01111
30/1E
94,5/5E,F
158/9E
222,3/DE,F
Test Mode Control
TMCR
00111
14/0E
78,9/4E,F
142/8E
206,7/CE,F
Test Mode Data
TMDR
00110
12/0C
76,7/4C,D
140/8C
204,5/CC,D
Time Constant 0
TC0R
10111
46/2E
110,1/6E,F
174/AE
238.9/EE,F
Time Constant 1
TC1R
11111
62/3E
126,7/7E,F
190/BE
254,5/FE,F
Transmit Character Count
TCCR
11110
60/3C
124,5/7C,D
188/BC
252,3/FC,D
Transmit Command/Status
TCSR
11010
52/34
116,7/74,5
180/B4
244,5/F4,5
Transmit Count Limit
TCLR
11101
58/3A
122,3/7A,B
186/BA
250,1/FA,B
Transmit Data
TDR
1x000
48/30
112/70 or 113/71
176/B0
240/F0 or
(Write only; RDR for Read)
241/F1
Transmit Interrupt Control
TICR
11011
54/36
118,9/76,7
182/B6
246,7/F6,7
Transmit Mode
TMR
11001
50/32
114,5/72,3
178/B2
242,3/F2,3
Transmit Sync
TSR
11100
56/38
120,1/78,9
184/B8
248,9/F8,9
UM009402-0201