MPC850VR50BU Freescale Semiconductor, MPC850VR50BU Datasheet - Page 47

• Manufacturer Part Number: MPC850VR50BU
• Description: IC MPU PWRQUICC 50MHZ 256-PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MPC850VR50BU

• Processor Type: MPC8xx PowerQUICC 32-Bit
• Speed: 50MHz
• Voltage: 3.3V
• Mounting Type: Surface Mount
• Package / Case: 256-PBGA
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Peak Reflow Compatible (260 C): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

Freescale Semiconductor
(FE=0, CE=0)
(FE=1, CE=1)
L1RSYNC
L1RCLK
L1RCLK
(Output)
L1ST n
L1RxD
(Input)
(Input)
(Input)
(Input)
1
2
3
4
MPC850 PowerQUICC™ Integrated Communications Processor Hardware Specifications, Rev. 2
Num
whichever is later.
83A
The ratio SyncCLK/L1RCLK must be greater than 2.5/1.
These specs are valid for IDL mode only.
Where P = 1/CLKOUT. Thus for a 25-MHz CLKO1 rate, P = 40 ns.
These strobes and TxD on the first bit of the frame become valid after L1CLK edge or L1SYNC,
82
83
84
85
86
87
88
Figure 45. SI Receive Timing Diagram with Normal Clocking (DSC = 0)
L1RCLK, L1TCLK frequency (DSC =1)
L1RCLK, L1TCLK width low (DSC =1)
L1RCLK, L1TCLK width high (DSC = 1)
L1CLK edge to L1CLKO valid (DSC = 1)
L1RQ valid before falling edge of L1TSYNC
L1GR setup time
L1GR hold time
L1xCLK edge to L1SYNC valid (FSD = 00) CNT =
0000, BYT = 0, DSC = 0)
73
71
76
2
Characteristic
75
74
Table 17. SI Timing (continued)
72
70
BIT0
RFSD=1
78
3
77
4
71a
P + 10
P + 10
42.00
42.00
1.00
Min
—
—
—
All Frequencies
SYNCCLK/2
16.00 or
79
30.00
Max
0.00
—
—
—
—
—
CPM Electrical Characteristics
L1TCLK
MHz
Unit
ns
ns
ns
ns
ns
ns
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