MPC8313ZQADDC Freescale Semiconductor, MPC8313ZQADDC Datasheet - Page 248

• Manufacturer Part Number: MPC8313ZQADDC
• Description: Microprocessors - MPU 8313 REV2.2 PB NO ENC
• Manufacturer: Freescale Semiconductor

Specifications of MPC8313ZQADDC

• Processor Series: MPC8313
• Core: e300
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 133 MHz
• Program Memory Size: 16 KB
• Data Ram Size: 16 KB
• Interface Type: I2C
• Mounting Style: SMD/SMT
• Package / Case: PBGA
• Number Of Programmable I/os: 32
• Number Of Timers: 4

System Configuration
5.5.5.3
The real time counter prescale register (RTPSR), shown in
configure the RTC prescaler’s value.
Table 5-42
5.5.5.4
The real time counter register (RTCTR), shown in
current value in the RTC counter.
The CNTV value is not affected by reads or writes to RTCTR.
Table 5-43
5-40
Offset 0x08
Offset 0x0C
Reset
Reset
0–31
0–31
Bits
Bits
W
W
R
R
0
0
Name
PRSC RTC prescaler bits. Select the input clock divider for the RTC counter clock. The prescaler is programmed to
Name
CNTV RTC counter value field. RTCTR[CNTV] contains the current value of the time counter. This is a read-only
defines the bit fields of RTPSR.
defines the bit fields of RTCTR.
Real Time Counter Prescale Register (RTPSR)
Real Time Counter Register (RTCTR)
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
divide the RTC clock input by values from 1 to 4,294,967,296. The value 0x0000 divides the clock by 1 and
0xFFFF_FFFF divides the clock by 4,294,967,296.
To accurately predict the timing of the next count, change the RTPSR[PRSC] field only when the enable bit
RTCNR[CLE] is clear. Changing the RTPSR[PRSC] bits resets the prescaler counter. System reset and the
loading of a new value into the counter both reset the prescaler counter. Clearing RTCNR[CLE] stops the
prescaler counter.
field. Writes have no effect on RTCTR[CNTV].
Figure 5-27. Real Time Counter Prescale Register (RTPSR)
Figure 5-28. Real Time Counter Register (RTCTR)
Table 5-42. RTPSR Bit Settings
Table 5-43. RTCTR Bit Settings
Figure
All zeros
All zeros
PRSC
CNTV
Description
Description
5-28, is a read-only register that shows the
Figure
5-27, is a read/write register used to
Freescale Semiconductor
Access: Read/Write
Access: Read only
31
31