CD00237391 Datasheet, PDF (109/177 Pages) STMicroelectronics – ARM-based 32-bit MCU, 150DMIPs, up to 1 MB Flash/128+4KB RAM

STM32F20xxx
Electrical characteristics
Figure 42. I²S slave timing diagram (Philips protocol)⁽¹⁾
tc(CK)
CPOL = 0
CPOL = 1
WS input
SDtr_ansmit
SDreceive
tw(CKH)
tw(CKL)
th(W_S)
t_su(WS)
LSB transmit⁽²⁾
t_{su(SD_SR)}
LSB receive⁽²⁾
MSB transmit
MSB receive
tv(_{SD_ST)}
Bitn transmit
th(_{SD_SR)}
Bitn receive
th(_{SD_ST)}
LSB transmit
LSB receive
ai14881b
1. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first
byte.
Figure 43. I²S master timing diagram (Philips protocol)⁽¹⁾
tf(CK)
tr(CK)
CPOL = 0
CPOL = 1
WS output
SDtr_ansmit
SDreceive
tc(CK)
tw(CKH)
tv(W_S)
tw(CKL)
th(W_S)
tv(_{SD_MT)}
LSB transmit⁽²⁾
MSB transmit
Bitn transmit
t_{su(SD_MR)}
LSB receive⁽²⁾
MSB receive
th(_{SD_MR)}
Bitn receive
th(_{SD_MT)}
LSB transmit
LSB receive
ai14884b
1. Based on characterization, not tested in production.
2. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first
byte.
Doc ID 15818 Rev 9
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