MEDIATEK Ralink MT7620 - Page 52

PGMT7620_V.1.0_040503
Page 52 of 523
MT7620 PROGRAMMING GUIDE
Integrated 802.11n MAC/BBP and 2.4 GHz RF/FEM Router-on-a-Chip
Bits
Type
Name
Description
Initial Value
14:8
-
-
Reserved
0x0
7
RW
ENABLE
Timer Enable
Enables the 40 MHz timer1.
0: Disable the timer. The timer will stop
counting and will retain its current value.
1: Enable the timer. The timer will begin
counting from its current value.
0x0
6
RW
WD_TIMEOUT_SRC
Watchdog Timeout Alarm Source
0: From Timer 1
1: From PMU watch dog timer
0x0
5:4
RW
MODE
Timer Mode
0: Free-running
1: Periodic
2: Time-out
3: Watchdog
0x0
2:0
RW
PRESCALE
Timer Clock Pre-scale
These bits are used to scale the timer clock in
order to achieve higher resolution or longer
timer periods. Their definitions are below.
Value
Timer Clock Frequency
0
System clock
1
System clock / 4
2
System clock / 8
3
System clock / 16
…
…
14
System clock / 32768
15
System clock / 65536
NOTE: The pre-scale value should not be
changed unless the timer is disabled.
0x0