MPC8313CZQADDC Freescale Semiconductor, MPC8313CZQADDC Datasheet - Page 836

• Manufacturer Part Number: MPC8313CZQADDC
• Description: Microprocessors - MPU 8313 REV2.2 PB NO EN EXT
• Manufacturer: Freescale Semiconductor

Specifications of MPC8313CZQADDC

• 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

Enhanced Three-Speed Ethernet Controllers
Only one of this register is required for the entire group of eTSECs. Figure 15-110 describes the definition
of the TMR_ADD register.
Table 15-118
15.5.3.10.9 Timer Accumulator Register (TMR_ACC)
Timer accumulator register accumulates the value of the addend register into it. An overflow pulse of the
accumulator is used to increment the timer clock by TMR_CTRL[TCLK_PERIOD]. This register is read
only in normal operation. The register in eTSEC1 is shared for all eTSECs. Figure 15-111 describes the
definition of the TMR_ACC register.
Table 15-119
15.5.3.10.10 Timer Prescale Register (TMR_PRSC)
Timer generated output clock prescale register. It is used to adjust output clock frequency that is put onto
the 1588 clock output signal. The register in eTSEC1 is shared for all eTSECs. Figure 15-112 describes
the definition for the TMR_PRSC register.
15-118
0–31
0–31
Bits
Bits
Offset eTSEC1:0x2_4E20
Offset eTSEC1:0x2_4E24
Reset
Reset
W
W
R
R
TMR_ACC
0
ADDEND
0
Name
Name
describes the fields of the TMR_ADD register fields for the timer.
describes the fields of the TMR_ACC register.
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
For example,
TimerOsc = 50 MHz
NominalFreq = 40 MHz
FreqDivRatio = 1.25
ADDEND = ceil(2^32/1.25) = 0xCCCC_CCCD
Timer drift compensation addend register value. It is programmed with a value of 2^32/FreqDivRatio.
32-bit timer accumulator register
Table 15-118. TMR_ADD Register Field Descriptions
Table 15-119. TMR_ACC Register Field Descriptions
Figure 15-110. TMR_ADD Register Definition
Figure 15-111. TMR_ACC Register Definition
TMR_ACC
ADDEND
All zeros
All zeros
Description
Description
Access: Read/Write
Access: Read/Write
Freescale Semiconductor
31
31