ez80f91 ZiLOG Semiconductor, ez80f91 Datasheet - Page 147
ez80f91
Manufacturer Part Number
ez80f91
Description
Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
Manufacturer
ZiLOG Semiconductor
Datasheet
1.EZ80F91.pdf
(387 pages)
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PS027001-0707
Timer Reload Register—High Byte
The Timer x Reload Register—High Byte (see
(MSB) of the 2-byte timer reload value. In CONTINUOUS mode, the timer reload value is
reloaded into the timer upon end-of-count. When the reload bit (TMRx_CTL[RLD]) is set
to 1, it forces the reload function, the timer reload value is written to the timer on the next
rising edge of the clock.
This register shares its address with the corresponding timer data register.
Table 60. Timer Reload Register—High Byte
TMR1_RR_H = 0069h, TMR2_RR_H = 0073h, TMR3_RR_H = 0078h)
Timer Input Capture Control Register
The Timer x Input Capture Control Register (see
edges to be captured. For Timer 1, CAP_EDGE_B is used for IC1 and CAP_EDGE_A is
for IC0. For Timer 3, CAP_EDGE_B is for IC3, and CAP_EDGE_A is for IC2.
Table 61. Timer Input Capture Control Register
(TMR1_CAP_CTL = 006Ah, TMR3_CAP_CTL = 007Bh)
Bit
Reset
CPU Access
Note: W = Write Only.
Bit
Position
[7:0]
TMR_RR_H
Bit
Reset
CPU Access
Note: R = Read only; R/W = Read/Write.
Bit
Position
[7:4]
Value
00h–FFh
Value
0000
R/W
W
7
0
7
0
Description
These bits represent the High byte of the 2-byte timer
reload value, {TMR
is bit 15 (msb) of the 16-bit timer reload value. Bit 0 is bit 8
of the 16-bit timer reload value.
Description
Reserved
R/W
W
6
0
6
0
R/W
W
5
0
5
0
Table
Table
x
_RR_H[7:0], TMR
R/W
W
4
0
4
0
60) stores the most-significant byte
(TMR0_RR_H = 0064h,
61) is used to select the edge or
R/W
W
3
0
3
0
Programmable Reload Timers
Product Specification
R/W
W
2
0
x
2
0
_RR_L[7:0]}. Bit 7
eZ80F91 ASSP
R/W
W
1
0
1
0
R/W
W
0
0
0
0
139
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