z85230 ZiLOG Semiconductor, z85230 Datasheet - Page 42

• Manufacturer Part Number: z85230
• Description: Enhanced Serial Communications Controller
• Manufacturer: ZiLOG Semiconductor

Table 8. Write Register 0
PS005303-0907
Bit
R/W
Reset
R = Read W = Write X = Indeterminate
Bit
Position
7, 6
5, 4, 3
2, 1, 0
For the 80230, bits 1 and 0 are accessible only through Channel B.
Table 8
R/W
W
7
0
through
Value
000
001
010
100
101
000
001
010
100
101
000
001
010
100
101
Table 24
011
110
011
110
011
110
111
111
111
00
01
10
11
6
0
Description
Null Code
Reset Tx CRC Checker
Reset Tx CRC Generator
Reset Tx Underrun/EOM Latch
Null Code
Point High
Reset Ext/Status Interrupts
Send Abort (SDLC)
Enable Int on Next Rx Character
Reset Tx Int Pending
Error Reset
Reset Highest IUS
Register 0
Register 1
Register 2
Register 3
Register 4
Register 5
Register 6
Register 7
Register 8 (with Point High)
Register 9 (with Point High)
Register 10 (with Point High)
Register 11 (with Point High)
Register 12 (with Point High)
Register 13 (with Point High)
Register 14 (with Point High)
Register 15 (with Point High)
describe the format of each write register.
5
0
4
0
W
3
0
2
0
Product Specification
Z85230/Z80230
1
0
Programming
0
0
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