Z89175 Zilog., Z89175 Datasheet - Page 38

• Manufacturer Part Number: Z89175
• Description: Voice Processing Controllers
• Manufacturer: Zilog.

Z8
Z89175/Z89176
Voice Processing Controllers
38
®
FUNCTIONAL DESCRIPTION (Continued)
(DSP CON)
D7, D6
(F) OC
DSP Clock
D0,D1
(SMR)
Clock
TIN P31
Logic
16
2
2
External Clock
Internal Clock
Gated Clock
Triggered Clock
Internal
Clock
4
2
Figure 24. Counter/Timer Block Diagram
T0, T2, T3
OSC
4
P R E L I M I N A R Y
Write
Write
Initial Value
Initial Value
Register
Register
Counter
Counter
PRE0
PRE1
Down
Down
6-Bit
6-Bit
Write
Write
Internal Data Bus
Internal Data Bus
Initial Value
Initial Value
Register
Register
Counter
Counter
Down
Down
8-Bit
8-bit
T0
T1
Read
Read
2
Current Value
Current Value
Register
Register
T0
T1
DS97TAD0100
T
P36
IRQ5
IRQ4
OUT
Zilog