Z86L79 Datasheet, PDF (28/58 Pages) Zilog, Inc. – Low-Voltage Microcontroller

Z86L79/80
Low-Voltage Microcontroller
Zilog
CTR2 Description
T16_Enable. This field enables T16 when set to 1.
Single/Modulo-N. In Transmit Mode, when set to 0, the
counter reloads the initial value when terminal count is
reached. When set to 1, the counter stops when the termi-
nal count is reached.
In Demodulation Mode, when set to 0 , T16 captures and
reloads on detection of all the edges; when set to 1, T16
captures and detects on the first edge, but ignores the sub-
sequent edges. For details, see the description of T16 De-
modulation Mode.
SMR2(F)%0D: Stop-Mode Recovery Register 2.
Time_Out. This bit is set when T16 times out (terminal
count reached). In order to reset it, a 1 should be written to
this location.
T16_Clock. Defines the frequency of the input signal to
Counter/Timer16.
Capture_INT_Mask. Set this bit to allow interrupt when
data is captured into LO16 and HI16.
Counter_INT_Mask. Set this bit to allow interrupt when
T16 times out.
P35_Out. This bit defines whether P35 is used as a normal
output pin or T16 output.
Field
Reserved
Recovery Level
Reserved
Source
Bit Position
7-------
-6------
W
--5-----
---432--
W
Reserved
------10
Note: *Indicates the value upon Power-On Reset.
Value
0
0*
1
0
000*
001
010
011
100
101
110
111
00
Description
Reserved (Must be 0)
Low
High
Reserved (Must be 0)
A. POR Only
B. NAND of P23-P20
C. NAND or P27-P20
D. NOR of P33-P31
E. NAND of P33-P31
F. NOR of P33-P31, P00,P07
G. NAND of P33-P31,P00,P07
H. NAND of P33-P31,P22-P20
Reserved (Must be 0)
3-28
PRELIMINARY