Toshiba TLCS-900 Computer Hardware User Manual


 
TMP92CM22
2007-02-16
92CM22-109
TMRA3 Flip-Flop Control Register
7 6 5 4 3 2 1 0
Bit symbol TA3FFC1 TA3FFC0 TA3FFCIE TA3FFCIS
Read/Write R/W
After reset 1 1 0 0
Function 00: Invert TA3FF
01: Set TA3FF to “1”
10: Clear TA3FF to “0”
11: Don’t care
TA3FF
control for
inversion
0: Disable
1: Enable
TA3FF
inversion
select
0: TMRA2
1: TMRA3
0 Invert TMRA2
1 Invert TMRA3
0 Disable inversion
1 Enable inversion
00 Invert TA3FF
01 Set TA3FF to “1”
10 Clear TA3FF to “0”
11 Don’t care
Figure 3.7.8 Register for TMRA
Inverse signal for timer flip-flop 3 (TA3FF)
(
Don’t care exce
p
t in 8-bit timer mode
)
TA3FFCR
(110DH)
Note: The values of bits 4 to 7 of TA3FFCR are undefined when read
.
TA3FF control
TA3FF control for inversion
Read-modify
-write
instruction is
prohibited.