ADuCM320 Hardware Reference Manual
UG-498
Rev. C | Page 173 of 196
Bits
Bit Name
Description
Reset
Access
7
ENABLE
Timer enable.
0x0
RW
0: DIS: disable the timer (default)
1: EN: enable the timer
6
MOD
Timer mode.
0x1
RW
0: PERIODIC: cleared by user to operate in periodic mode. In this mode, the
timer counts up to T4WUFD.
1: FREERUN: set by user to operate in free running mode (default).
[5:4]
RESERVED
Reserved. These bits should be written 0.
0x0
RW
3
FREEZE
Freeze enable.
0x0
RW
0: DIS: Cleared by user to disable this feature (default).
1: EN: Set by user to enable the freeze of the high 16-bits after the lower
bits have been read from T4VAL0. This ensures that the software reads an
atomic shot of the timer. T4VAL1 unfreezes after it has been read.
2
RESERVED
Reserved.
0x0
RW
[1:0]
PRE
Prescaler.
0x0
RW
00: PREDIV1: source clock/1 (default). If the selected clock source is PCLK,
this setting results in a prescaler of 4.
01: PREDIV16: source clock/16
10: PREDIV256: source clock/256
11: PREDIV32768: source clock/32,768
12-Bit Interval for Wake-Up Field A Register
Address: 0x4000250C, Reset: 0x00C8, Name: T4INC
Table 252. Bit Descriptions for T4INC
Bits
Bit Name
Description
Reset
Access
[15:12]
RESERVED
Reserved.
0x0
R
[11:0]
INTERVAL
Interval for Wake-Up Field A.
0x0C8
RW
Wake-Up Field B—Least Significant 16 Bits Register
Address: 0x40002510, Reset: 0x1FFF, Name: T4WUFB0
Table 253. Bit Descriptions for T4WUFB0
Bits
Bit Name
Description
Reset
Access
[15:0]
T4WUFBL
Wake-Up Field B low. Least significant 16 bits of Wake-Up Field B.
0x1FFF
RW
Wake-Up Field B—Most Significant 16 Bits Register
Address: 0x40002514, Reset: 0x0000, Name: T4WUFB1
Table 254. Bit Descriptions for T4WUFB1
Bits
Bit Name
Description
Reset
Access
[15:0]
T4WUFBH
Wake-Up Field B High. Most significant 16 bits of Wake-Up Field B.
0x0
RW
Wake-Up Field C—Least Significant 16 Bits Register
Address: 0x40002518, Reset: 0x2FFF, Name: T4WUFC0
Table 255. Bit Descriptions for T4WUFC0
Bits
Bit Name
Description
Reset
Access
[15:0]
T4WUFCL
Wake-Up Field C Low. Least significant 16 bits of Wake-Up Field C.
0x2FFF
RW