Z8E001 Datasheet, PDF (43/49 Pages) Zilog, Inc. – CMOS OTP Microcontroller

Zilog
Register 0D6H
PTBDIR
D7
D6 D5 D4
D3 D2
D1 D0
Z8E001
CMOS OTP Microcontroller
1 = BIT N SET AS OUTPUT
0 = BIT N SET AS INPUT
RESERVED (MUST BE 0)
Figure 39. Port B Directional Control Register
Register 0D7H
PTBSFR
D7
D6 D5 D4
D3 D2
D1 D0
1 = ENABLE PB0 AS SMR INPUT
0 = NO SPECIAL FUNCTIONALITY
1 = ENABLE PB1 AS TIMER0 OUTPUT
0 = NO SPECIAL FUNCTIONALITY
1 = ENABLE PB2 AS INT1 INPUT
0 = NO SPECIAL FUNCTIONALITY
1 = Analog Comparator on PB3 & PB4
0 = Digital Inputs on PB3 & PB4
1 = PB4 Interrupts Enabled
0 = PB4 Interrupts Disabled
RESERVED (MUST BE 0)
Figure 40. Port B Special Function Register
DS97Z8X1300
PRELIMINARY
43