MPC8308VMAGD Freescale Semiconductor, MPC8308VMAGD Datasheet - Page 1001

• Manufacturer Part Number: MPC8308VMAGD
• Description: MPU POWERQUICC II PRO 473MAPBGA
• Manufacturer: Freescale Semiconductor

Specifications of MPC8308VMAGD

• Processor Type: MPC83xx PowerQUICC II Pro 32-Bit
• Speed: 400MHz
• Voltage: 1V
• Mounting Type: Surface Mount
• Package / Case: 473-MAPBGA
• Product: Network Processor
• Data Rate: 256 bps
• Frequency: 400 MHz
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Supply Current (max): 5 uA
• Maximum Operating Temperature: + 105 C
• Minimum Operating Temperature: 0 C
• Interface: I2C, JTAG, SPI
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Table 16-118
16.5.3.10.9 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 16-111 describes the
definition of the TMR_ACC register.
Table 16-119
16.5.3.10.10 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 16-112 describes
the definition for the TMR_PRSC register.
Freescale Semiconductor
0–31
0–31
Bits
Bits
Offset eTSEC1:0x2_4E24
Offset eTSEC1:0x2_4E28
Reset
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
W
W
R
R
TMR_ACC
ADDEND
0
0
Name
Name
describes the fields of the TMR_ADD register fields for the timer.
describes the fields of the TMR_ACC register.
Timer drift compensation addend register value. It is programmed with a value of 2^32/FreqDivRatio.
For example,
TimerOsc = 50 MHz
NominalFreq = 40 MHz
FreqDivRatio = 1.25
ADDEND = ceil(2^32/1.25) = 0xCCCC_CCCD
32-bit timer accumulator register
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 0
Table 16-118. TMR_ADD Register Field Descriptions
Table 16-119. TMR_ACC Register Field Descriptions
Figure 16-112. TMR_PRSC Register Definition
Figure 16-111. TMR_ACC Register Definition
—
TMR_ACC
All zeros
15 16
Description
Description
Enhanced Three-Speed Ethernet Controllers
PRSC_OCK
Access: Read/Write
Access: Read/Write
31
31
16-117