参数资料
型号: MC9328MX21CJM
厂商: Freescale Semiconductor
文件页数: 51/100页
文件大小: 0K
描述: MPU I.MX21 289-MAPBGA
特色产品: MC9328MX21 Multimedia Processor
标准包装: 90
系列: i.MX21
核心处理器: ARM9
芯体尺寸: 32-位
速度: 266MHz
连通性: 1 线,EBI/EMI,I²C,IrDA,MMC,智能卡,SPI,SSI,UART/USART,USB OTG
外围设备: DMA,I²S,LCD,POR,PWM,WDT
输入/输出数: 192
程序存储器类型: ROMless
电压 - 电源 (Vcc/Vdd): 1.45 V ~ 3.3 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 289-LFBGA
包装: 托盘
产品目录页面: 732 (CN2011-ZH PDF)
MC9328MX21 Technical Data, Rev. 3.4
54
Freescale Semiconductor
Specifications
Synchronous Internal Clock Operation (SAP Ports)
31
SRXD setup before (Tx) CK falling
23.00
21.41
ns
32
SRXD hold after (Tx) CK falling
0
0
ns
Synchronous External Clock Operation (SAP Ports)
33
SRXD setup before (Tx) CK falling
1.20
0.88
ns
34
SRXD hold after (Tx) CK falling
0
0
ns
1. All the timings for the SSI are given for a non-inverted serial clock polarity (TSCKP/RSCKP = 0) and a non-inverted frame sync
(TFSI/RFSI = 0). If the polarity of the clock and/or the frame sync have been inverted, all the timing remains valid by inverting
the clock signal STCK/SRCK and/or the frame sync STFS/SRFS shown in the tables and in the figures.
Table 35. SSI to SSI1 Ports Timing Parameters
Ref
No.
Parameter
1.8 V
± 0.1 V
3.0 V
± 0.3 V
Unit
Minimum
Maximum
Minimum
Maximum
Internal Clock Operation1 (SSI1 Ports)
1
(Tx/Rx) CK clock period1 9
0.91
90.91
ns
2
(Tx) CK high to FS (bl) high
-0.68
-0.15
-0.68
-0.15
ns
3
(Rx) CK high to FS (bl) high
-0.96
-0.27
-0.96
-0.27
ns
4
(Tx) CK high to FS (bl) low
-0.68
-0.15
-0.68
-0.15
ns
5
(Rx) CK high to FS (bl) low
-0.96
-0.27
-0.96
-0.27
ns
6
(Tx) CK high to FS (wl) high
-0.68
-0.15
-0.68
-0.15
ns
7
(Rx) CK high to FS (wl) high
-0.96
-0.27
-0.96
-0.27
ns
8
(Tx) CK high to FS (wl) low
-0.68
-0.15
-0.68
-0.15
ns
9
(Rx) CK high to FS (wl) low
-0.96
-0.27
-0.96
-0.27
ns
10
(Tx) CK high to STXD valid from high impedance
-1.68
-0.36
-1.68
-0.36
ns
11a
(Tx) CK high to STXD high
-1.68
-0.36
-1.68
-0.36
ns
11b
(Tx) CK high to STXD low
-1.68
-0.36
-1.68
-0.36
ns
12
(Tx) CK high to STXD high impedance
-1.58
-0.31
-1.58
-0.31
ns
13
SRXD setup time before (Rx) CK low
20.41
20.41
ns
14
SRXD hold time after (Rx) CK low
0
0
ns
External Clock Operation (SSI1 Ports)
15
(Tx/Rx) CK clock period1 9
0.91
90.91
ns
16
(Tx/Rx) CK clock high period
36.36
36.36
ns
17
(Tx/Rx) CK clock low period
36.36
36.36
ns
18
(Tx) CK high to FS (bl) high
10.22
17.63
8.82
16.24
ns
19
(Rx) CK high to FS (bl) high
10.79
19.67
9.39
18.28
ns
Table 34. SSI to SAP Ports Timing Parameters (Continued)
Ref
No.
Parameter
1.8 V
± 0.1 V
3.0 V
± 0.3 V
Unit
Minimum
Maximum
Minimum
Maximum
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