7-12
Miscellaneous Registers
Register: 0xFE0A
Timer 2 Threshold (T2T)
Read/Write
T2TH[7:0]
Timer 2 Threshold
[7:0]
These register bits select the time-out threshold for timer 2.
The 8-bit number programmed in this register corresponds
to a multiple of the selected timer resolution, which is
selected by the T2PS bit (0xFE09, bit 4). A value of 0x00
in this register selects the maximum time-out value of 256
times the selected timer resolution.
Register: 0xFE0B
Timer 2 Secondary Chain (T2SC)
Read Only
R
Reserved
7
T2SC[6:0]
Timer 2 Secondary Chain
[6:0]
These register bits provide the ability to read the
secondary divide by 100 chain of timer 2. This chain is
enabled with the T2PS bit (0xFE09, bit 4). When enabled,
a value of 100 (decimal) in this register triggers
advancement of the final timer 2 divider chain.
7
6
5
4
3
2
1
0
T2TH7
T2TH6
T2TH5
T2TH4
T2TH3
T2TH2
T2TH1
T2TH0
Defaults:
0
0
0
0
0
0
0
0
7
6
5
4
3
2
1
0
R
T2SC6
T2SC5
T2SC4
T2SC3
T2SC2
T2SC1
T2SC0
Defaults:
x
0
0
0
0
0
0
0
Содержание Symbios SYM53C040
Страница 12: ...xii Preface...
Страница 90: ...4 18 SCSI and DMA Registers...
Страница 98: ...5 8 SFF 8067 Registers...
Страница 110: ...6 12 Two Wire Serial Registers...
Страница 126: ...7 16 Miscellaneous Registers...
Страница 160: ...8 34 System Registers...
Страница 184: ...9 24 Electrical Characteristics...
Страница 194: ...A 10 Register Summary...
Страница 214: ......