mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 473

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

TM_CMD
RESET
RESET
• TM_CMD—This register is used as a parameter location when the SET TIMER
FIELD
ADDR
FIELD
ADDR
• TM_CNT—This register is a tick counter that the microcontroller updates after each tick
R/W
R/W
BIT
BIT
command is issued. You must write this location prior to issuing the SET TIMER
command. The bits of this register are defined as follows.
V—Valid
0 = Disables the timer.
1 = Enables the timer.
R—Restart
0 = One-shot timer operation.
1 = Automatic timer restart.
PWM—Pulse-Width Modulation Mode
0 = Normal mode.
1 = Pulse-width modulation.
Bits 3–11—Reserved
These bits are reserved and must be set to 0.
TIMER NUMBER
This bit is the value from zero to 15 that signifies timer configuration.
TIMER PERIOD
This bit is the 16-bit timeout value of the timer. The maximum value is 65,536 and is
or after the timer table is scanned. It is updated if the microcontroller’s internal timer is
enabled, regardless of whether any of the 16 timers are enabled, and it can be used to
track the number of ticks the microcontroller receives and responds to.
encoded as 0x0000.
R/W
16
0
V
0
R/W
17
R
1
0
PWM
R/W
18
2
0
Freescale Semiconductor, Inc.
For More Information On This Product,
19
3
20
MPC823 REFERENCE MANUAL
4
Go to: www.freescale.com
21
5
(IMMR & 0xFFFF0000) + 0x3DBA
(IMMR & 0xFFFF0000) + 0x3DB8
22
6
RESERVED
TIMER PERIOD
R/W
23
7
0
R/W
0
24
8
25
9
Communication Processor Module
10
26
11
27
12
28
TIMER NUMBER
13
29
R/W
0
14
30
16-21
15
31