参数资料
型号: SCF5250VM120
厂商: Freescale Semiconductor
文件页数: 13/56页
文件大小: 0K
描述: MCU 32BIT 120MHZ AUD 196-MAPBGA
产品变化通告: Product Discontinuation 24/Feb/2012
标准包装: 126
系列: SCF52xx
核心处理器: Coldfire V2
芯体尺寸: 32-位
速度: 120MHz
连通性: EBI/EMI,I²C,IDE,MMC,SPI,UART/USART
外围设备: DMA,I²S,POR,串行音频,WDT
输入/输出数: 57
程序存储器类型: ROMless
RAM 容量: 128K x 8
电压 - 电源 (Vcc/Vdd): 1.08 V ~ 1.32 V
数据转换器: A/D 6x12b
振荡器型: 内部
工作温度: -20°C ~ 70°C
封装/外壳: 196-LBGA
包装: 托盘
SCF5250 Data Sheet: Technical Data, Rev. 1.3
20
Freescale Semiconductor
.
3.19
BDM/JTAG Signals
The SCF5250 complies with the IEEE 1149.1A JTAG testing standard. The JTAG test pins are multiplexed
with background debug pins.
3.20
Clock and Reset Signals
The clock and reset signals configure the SCF5250 processor and provide interface signals to the external
system.
3.20.1
Reset In
Asserting RSTI causes the SCF5250SCF5250 to enter reset exception processing. When RSTI is
recognized, the data bus is tri-stated.
Table 12. Processor Status Signal Encodings
PST[3:0]
Definition
(HEX)
(BINARY)
$0
0000
Continue execution
$1
0001
Begin execution of an instruction
$2
0010
Reserved
$3
0011
Entry into user-mode
$4
0100
Begin execution of PULSE and WDDATA instructions
$5
0101
Begin execution of taken branch or Synch_PC1
1 Rev. B enhancement.
$6
0110
Reserved
$7
0111
Begin execution of RTE instruction
$8
1000
Begin 1-byte data transfer on DDATA
$9
1001
Begin 2-byte data transfer on DDATA
$A
1010
Begin 3-byte data transfer on DDATA
$B
1011
Begin 4-byte data transfer on DDATA
$C
1100
Exception processing2
2 These encodings are asserted for multiple cycles.
$D
1101
Emulator mode entry exception processing2
$E
1110
Processor is stopped, waiting for interrupt2
$F
1111
Processor is halted2
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