Z8PE003 Datasheet, PDF (35/48 Pages) Zilog, Inc. – FEATURE-ENHANCED Z8PLUS 1K ROM ONE-TIME PROGRAMMABLE (OTP) MICROCONTROLLER

ZiLOG
PORT A REGISTER DIAGRAMS
Register 0D0H
PTAIN
D7 D6 D5 D4 D3 D2 D1 D0
Z8PE003
Z8Plus OTP Microcontroller
Port A Bit n current input value
(only updated for pins in input mode)
Figure 28. Port A Input Value Register
Register 0D1H
PTAOUT
D7 D6 D5 D4 D3 D2 D1 D0
Port A Bit n currentoutput value
Figure 29. Port A Output Value Register
Register 0D2H
D7 D6 D5
PTADIR
D4 D3 D2 D1 D0
1 = Bit n set as an output
0 = Bit n set as an input
Figure 30. Port A Directional Control Register
Register 0D3H
PTASFR
D7 D6 D5 D4 D3 D2 D1 D0
1 = Bit n in open-drain mode
0 = Bit n in push-pull mode
Figure 31. Port A Special Function Register
DS007500-Z8X0399
PRELIMINARY
35