参数资料
型号: MCF5232CVM150
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 150 MHz, RISC PROCESSOR, PBGA196
封装: ROHS COMPLIANT, MAPBGA-196
文件页数: 48/48页
文件大小: 666K
代理商: MCF5232CVM150
Design Recommendations
MCF523x Integrated Microprocessor Hardware Specification, Rev. 4
Freescale Semiconductor
9
5
Design Recommendations
5.1
Layout
Use a 4-layer printed circuit board with the VDD and GND pins connected directly to the power
and ground planes for the MCF523x.
See application note AN1259, System Design and Layout Techniques for Noise Reduction in
Processor-Based Systems.
Match the PC layout trace width and routing to match trace length to operating frequency and board
impedance. Add termination (series or therein) to the traces to dampen reflections. Increase the
PCB impedance (if possible) keeping the trace lengths balanced and short. Then do cross-talk
analysis to separate traces with significant parallelism or are otherwise "noisy". Use 6 mils trace
and separation. Clocks get extra separation and more precise balancing.
Test
TEST
I
18
F5
J4
PLL_TEST
I
—R14
R14
Power Supplies
VDDPLL
I
87
M13
P15
VSSPLL
I
84
L14
R15
OVDD
I
1, 9, 17, 32,
41, 55, 62,
69, 81, 90,
95, 105, 114,
128, 132,
138, 146
E5, E7,
E10, F7, F9,
G6, G8, H7,
H8, H9, J6,
J8, J10, K5,
K6, K8
E6:11, F5, F7:10, F12, G5, G6, G11,
G12, H5, H6, H11, H12, J5, J6, J11,
J12, K5, K6, K11, K12, L5, L7:10,
L12, M6:M11
VSS
I
8, 16, 25, 31,
40, 54, 61,
67, 80, 88,
94, 104, 113,
127, 131,
137, 145,
153, 160
A1, A14,
E6, E9, F6,
F8, F10,
G7, G9, H6,
J5, J7, J9,
K7, P1, P14
A1, A16, E5, E12, F6, F11, F16,
G7:10, H7: 10, J1, J7:10, K7:10, L6,
L11, M5, M12, N16, T1, T6, T16
VDD
I
15, 53, 103,
144
D6, F11,
G4, L4
A8, G16, H1, T5
1 Refers to pin’s primary function. All pins which are configurable for GPIO have a pullup enabled in GPIO mode with the exception
of PBUSCTL[7], PBUSCTL[4:0], PADDR, PBS, PSDRAM.
2 If JTAG_EN is asserted, these pins default to Alternate 1 (JTAG) functionality. The GPIO module is not responsible for assigning
these pins.
Table 2. MCF523x Signal Information and Muxing (continued)
Signal Name
GPIO
Alternate 1 Alternate 2 Dir.1
MCF5232
160
QFP
MCF5232
196
MAPBGA
MCF5233
256
MAPBGA
MCF5234
256
MAPBGA
MCF5235
256
MAPBGA
相关PDF资料
PDF描述
MCF5235CVM150 32-BIT, 150 MHz, RISC PROCESSOR, PBGA256
MCF5235CVF150 32-BIT, 150 MHz, RISC PROCESSOR, PBGA256
MCF5249CVF140 32-BIT, 140 MHz, RISC PROCESSOR, PBGA160
MCF5249VM140 32-BIT, 140 MHz, RISC PROCESSOR, PBGA160
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