Zilog Z80230 - Manual (Page 29)

SCC/ESCC
User Manual
UM010903-0515 Interfacing the SCC/ESCC
22
0 0 0 1 0 WR2 RR2B RR2B RR2B
0 0 0 1 1 WR3B RR3B RR3B RR3B
0 0 1 0 0 WR4B (RR0B) (RR0B) (WR4B)
0 0 1 0 1 WR5B (RR1B) (RR1B) (WR5B)
0 0 1 1 0 WR6B (RR2B) RR6B RR6B
0 0 1 1 1 WR7B (RR3B) RR7B RR7B
0 1 0 0 0 WR8B RR8B RR8B RR8B
0 1 0 0 1 WR9 (RR13B) (RR13B) (WR3B)
0 1 0 1 0 WR10B RR10B RR10B RR10B
0 1 0 1 1 WR11B (RR15B) (RR15B) (WR10B)
0 1 1 0 0 WR12B RR12B RR12B RR12B
0 1 1 0 1 WR13B RR13B RR13B RR13B
0 1 1 1 0 WR14B RR14B RR14B (WR7’B)
0 1 1 1 1 WR15B RR15B RR15B RR15B
1 0 0 0 0 WR0A RR0A RR0A RR0A
1 0 0 0 1 WR1A RR1A RR1A RR1A
1 0 0 1 0 WR2 RR2A RR2A RR2A
1 0 0 1 1 WR3A RR3A RR3A RR3A
1 0 1 0 0 WR4A (RR0A) (RR0A) (WR4A)
1 0 1 0 1 WR5A (RR1A) (RR1A) (WR5A)
1 0 1 1 0 WR6A (RR2A) RR6A RR6A
1 0 1 1 1 WR7A (RR3A) RR7A RR7A
1 1 0 0 0 WR8A RR8A RR8A RR8A
1 1 0 0 1 WR9 (RR13A) (RR13A) (WR3A)
1 1 0 1 0 WR10A RR10A RR10A RR10A
1 1 0 1 1 WR11A (RR15A) (RR15A) (WR10A)
1 1 1 0 0 WR12A RR12A RR12A RR12A
Z80X30 Register Map (Shift Left Mode) (Continued)
READ 8030 80230
80C30/230* 80C30/230 WR15 D2=1
AD5 AD4 AD3 AD2 AD1 WRITE WR15 D2 = 0 WR15 D2=1 WR7' D6=1