Z86L70 Datasheet, PDF (14/61 Pages) Zilog, Inc. – IR/Low-Voltage Microcontroller

Z86L70/71/75/C71
IR/Low-Voltage Microcontroller
PIN FUNCTIONS
XTAL1 Crystal 1 (time-based input). This pin connects a
parallel-resonant crystal, ceramic resonator, LC, or RC
network or an external single-phase clock to the on-chip
oscillator input.
XTAL2 Crystal 2 (time-based output). This pin connects a
parallel-resonant, crystal, ceramic resonant, LC, or RC
network to the on-chip oscillator output.
Zilog
Port 0 (P07-P00). Port 0 is an two-bit, bidirectional,
CMOS-compatible port. These I/O lines are configured un-
der software control as an I/O port. The output drivers are
push-pull.
An optional 200 KOhm pull-up is available as a mask op-
tion on both Port 0 bits.
These pull-ups are disabled when configured (bit by
bit) as an output.
OEN
Mask
Option
200 KΩ
PAD
Out
In
Figure 8. Port 0 Configuration
1-14
PRELIMINARY
DS97LVO0500