参数资料
型号: MCF5234CVM100
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 100 MHz, RISC PROCESSOR, PBGA256
封装: MAPBGA-256
文件页数: 22/76页
文件大小: 2665K
代理商: MCF5234CVM100
MOTOROLA
MCF523x Integrated Microprocessor Hardware Specifications
29
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Chip Configuration Mode—Device Operating
2.2.15 Test Signals
Table 17 describes test signals.
2.2.16 Power and Ground Pins
The pins described in Table 18 provide system power and ground to the chip. Multiple pins are provided for
adequate current capability. All power supply pins must have adequate bypass capacitance for
high-frequency noise suppression.
3
Modes of Operation
3.1
Chip Configuration Mode—Device
Operating Options
Chip operating mode:
— Master mode
Boot device/size:
— External device boot
–32-bit
– 16-bit (Default)
– 8-bit
Output pad strength:
— Partial drive strength (Default)
— Full drive strength
Table 17. Test Signals
Signal Name
Abbreviation
Function
I/O
Test
TEST
Reserved for factory testing only and in normal modes of operation
should be connected to VSS to prevent unintentional activation of test
functions.
I
PLL Test
PLL_TEST
Reserved for factory testing only and should be treated as a
no-connect (NC).
I
Table 18. Power and Ground Pins
Signal Name
Abbreviation
Function
I/O
PLL Analog Supply
VDDPLL,
VSSPLL
Dedicated power supply signals to isolate the sensitive PLL analog
circuitry from the normal levels of noise present on the digital power
supply.
I
Positive Supply
VDDO
These pins supply positive power to the I/O pads
.
I
Positive Supply
VDD
These pins supply positive power to the core logic.
I
Ground
VSS
This pin is the negative supply (ground) to the chip.
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