Z8PE003 Datasheet, PDF (41/48 Pages) Zilog, Inc. – FEATURE-ENHANCED Z8PLUS 1K ROM ONE-TIME PROGRAMMABLE (OTP) MICROCONTROLLER

ZiLOG
PORT B CONTROL REGISTERS
Register 0D4H
PTBIN
D7 D6 D5 D4 D3 D2 D1 D0
Z8PE003
Z8Plus OTP Microcontroller
Port B Bit n current input value
(only updated for pins in input mode)
Reserved (must be 0)
Figure 38. 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 39. 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 40. Port B Directional Control Register
DS007500-Z8X0399
PRELIMINARY
41