STMicroelectronics Discovery kit for STM32L151/152 line - with STM32L152RC MCU STM32L152C-DISCO STM32L152C-DISCO Hoja De Datos
Los códigos de productos
STM32L152C-DISCO
Electrical characteristics
STM32L15xCC STM32L15xRC STM32L15xUC STM32L15xVC
DocID022799 Rev 6
Figure 25. I
2
S slave timing diagram (Philips protocol)
(1)
1. Measurement points are done at CMOS levels: 0.3 × V
DD
and 0.7 × V
DD
.
2. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first
byte.
Figure 26. I
2
S master timing diagram (Philips protocol)
(1)
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
2. LSB transmit/receive of the previously transmitted byte. No LSB transmit/receive is sent before the first
byte.
CK Inp
u
t
CPOL = 0
CPOL = 1
tc(CK)
WS input
SDtransmit
SDreceive
tw(CKH)
tw(CKL)
tsu(WS)
tv(SD_ST)
th(SD_ST)
th(WS)
tsu(SD_SR)
th(SD_SR)
MSB receive
Bitn receive
LSB receive
MSB transmit
Bitn transmit
LSB transmit
ai14881b
LSB receive
(2)
LSB transmit
(2)
CK o
u
tp
u
t
CPOL = 0
CPOL = 1
tc(CK)
WS output
SDreceive
SDtransmit
tw(CKH)
tw(CKL)
tsu(SD_MR)
tv(SD_MT)
th(SD_MT)
th(WS)
th(SD_MR)
MSB receive
Bitn receive
LSB receive
MSB transmit
Bitn transmit
LSB transmit
ai14884b
tf(CK)
tr(CK)
tv(WS)
LSB receive
(2)
LSB transmit
(2)