ZiLOG
PORT B CONTROL REGISTERS
Register 0D4H
PTBIN
D7 D6 D5 D4 D3 D2 D1 D0
Z8E001
Z8Plus OTP Microcontroller
PORT B BIT N CURRENT INPUT
VALUE
(only updated for pins in
input mode)
RESERVED (MUST BE 0)
Figure 37. Port B Input Value Register
Register 0D5H
PTBOUT
D7 D6 D5 D4 D3 D2 D1 D0
PORT B BIT N CURRENT
OUTPUT VALUE
RESERVED (MUST BE 0)
Figure 38. Port B Output Value Register
Register 0D6H
PTBDIR
D7 D6 D5 D4 D3 D2 D1 D0
1 = BIT N SET AS OUTPUT
0 = BIT N SET AS INPUT
RESERVED (MUST BE 0)
Figure 39. Port B Directional Control Register
DS001101-Z8X0400
PRELIMINARY
39