Z86E04 Datasheet, PDF (27/44 Pages) Zilog, Inc. – CMOS Z8 OTP MICROCONTROLLERS

Zilog
Z86E04/E08
CMOS Z8 OTP Microcontrollers
Internal Data Bus
1
Write
Write
Read
OSC
*
÷2
÷4
Internal Clock
PRE0
Initial Value
Register
6-Bit
Down
Counter
T0
Initial Value
Register
8-bit
Down
Counter
T0
Current Value
Register
IRQ4
External Clock
Clock
Logic
÷4
Internal Clock
Gated Clock
Triggered Clock
TIN P31
6-Bit
8-Bit
IRQ5
Down
Down
Counter
Counter
PRE1
Initial Value
Register
T1
Initial Value
Register
T1
Current Value
Register
Write
Write
Read
Internal Data Bus
* Note: By passed, if Low EMI Mode is selected.
Figure 14. Counter/Timers Block Diagram
DS97Z8X1104
PRELIMINARY
27