参数资料
型号: MCIMX514AJM6C
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PBGA529
封装: 19 X 19 MM, 0.8 MM PITCH, ROHS COMPLIANT, BGA-529
文件页数: 36/172页
文件大小: 2218K
代理商: MCIMX514AJM6C
i.MX51A Automotive and Infotainment Applications Processors, Rev. 4
130
Freescale Semiconductor
Electrical Characteristics
NOTE
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.
All timings are on Audiomux Pads when SSI is being used for data
transfer.
The terms WL and BL refer to Word Length (WL) and Bit Length (BL).
”Tx” and “Rx” refer to the Transmit and Receive sections of the SSI.
For internal Frame Sync operation using external clock, the FS timing is
same as that of Tx Data (for example, during AC97 mode of operation).
Table 102. SSI Transmitter Timing with Internal Clock
ID
Parameter
Min
Max
Unit
Internal Clock Operation
SS1
(Tx/Rx) CK clock period
81.4
ns
SS2
(Tx/Rx) CK clock high period
36.0
ns
SS3
(Tx/Rx) CK clock rise time
6.0
ns
SS4
(Tx/Rx) CK clock low period
36.0
ns
SS5
(Tx/Rx) CK clock fall time
6.0
ns
SS6
(Tx) CK high to FS (bl) high
15.0
ns
SS8
(Tx) CK high to FS (bl) low
15.0
ns
SS10
(Tx) CK high to FS (wl) high
15.0
ns
SS12
(Tx) CK high to FS (wl) low
15.0
ns
SS14
(Tx/Rx) Internal FS rise time
6.0
ns
SS15
(Tx/Rx) Internal FS fall time
6.0
ns
SS16
(Tx) CK high to STXD valid from high impedance
15.0
ns
SS17
(Tx) CK high to STXD high/low
15.0
ns
SS18
(Tx) CK high to STXD high impedance
15.0
ns
SS19
STXD rise/fall time
6.0
ns
Synchronous Internal Clock Operation
SS42
SRXD setup before (Tx) CK falling
30
ns
SS43
SRXD hold after (Tx) CK falling
0.0
ns
SS52
Loading
25.0
pF
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