Z86L7808PSC View Datasheet(PDF) - Zilog
Part Name
Description
MFG CO.
'Z86L7808PSC' PDF : 59 Pages View PDF
Z86L78
IR/Low-Voltage Microcontroller
Zilog
GENERAL DESCRIPTION (Continued)
The Register File is composed of 256 bytes of RAM, and it
includes four I/O port registers, 16 control and status reg-
isters and the rest are General-Purpose registers. The Ex-
tended Data RAM adds 256 bytes of usable general-pur-
pose registers. The Expanded Register File consists of
two additional register groups (F and D).
Notes: Signals with a preceding front slash, "/", are active
Low, for example, B//W (WORD is active Low); /B/W
(BYTE is active Low, only).
Power connections follow conventional descriptions be-
low:
To unburden the system from coping with real-time tasks,
such as generating complex waveforms or receiving and
demodulating complex waveform/pulses, the Z86L78 of-
fers an innovative intelligent counter/timer architecture
with 8-bit and 16-bit counter/timers (Figure 1). Additionally,
the Z86L78 features a large number of user-selectable
modes, and two on-board comparators to process analog
signals with separate reference voltages (Figure 2).
Connection
Power
Ground
Circuit
VCC
GND
Device
VDD
VSS
HI16
8
LO16
8
1 24 8
SCLK Clock
Divider
Input Glitch
Filter
Edge
Detect
Circuit
16-Bit
T16
8
TC16H
16
8
TC16L
HI8
8
LO8
8
8-Bit
T8
8
TC8H
8
TC8L
Timer 16
And/Or
Logic
Timer 8/16
Timer 8
Figure 1. Counter/Timer Block Diagram
2-2
DS97LVO0701
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