Table – Zilog Z80230 User Manual
Page 151
SCC/ESCC
User Manual
UM010903-0515
Register Descriptions
144
Z85X30 Register Map
READ 8530
85C30/85230W
85C30/230*
85C30/230 R15 D2=1
A//B PNT2 PNT1 PNT0 WRITE WR15 D2 = 0 WR15 D2=1 WR7' D6=1
0
0
0
0
WR0B RR0B
RR0B
RR0B
0
0
0
1
WR1B RR1B
RR1B
RR1B
0
0
1
0
WR2
RR2B
RR2B
RR2B
0
0
1
1
WR3B RR3B
RR3B
RR3B
0
1
0
0
WR4B (RR0B)
(RR0B)
(WR4B)
0
1
0
1
WR5B (RR1B)
(RR1B)
(WR5B)
0
1
1
0
WR6B (RR2B)
RR6B
RR6B
0
1
1
1
WR7B (RR3B)
RR7B
RR7B
1
0
0
0
WR0A RR0A
RR0A
RR0A
1
0
0
1
WR1A RR1A
RR1A
RR1A
1
0
1
0
WR2
RR2A
RR2A
RR2A
1
0
1
1
WR3A RR3A
RR3A
RR3A
1
1
0
0
WR4A (RR0A)
(RR0A)
(WR4A)
1
1
0
1
WR5A (RR1A)
(RR1A)
(WR5A)
1
1
1
0
WR6A (RR2A)
RR6A
RR6A
1
1
1
1
WR7A (RR3A)
RR7A
RR7A
With Point High Command
0
0
0
0
WR8B RR8B
RR8B
RR8B
0
0
0
1
WR9
(RR13B)
(RR13B)
(WR3B)
0
0
1
0
WR10B RR10B
RR10B
RR10B
0
0
1
1
WR11B (RR15B)
(RR15B)
(WR10B)
0
1
0
0
WR12B RR12B
RR12B
RR12B
0
1
0
1
WR13B RR13B
RR13B
RR13B
0
1
1
0
WR14B RR14B
RR14B
(WR7’B)
0
1
1
1
WR15B RR15B
RR15B
RR15B
1
0
0
0
WR8A RR8A
RR8A
RR8A