MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 646

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Inter-integrated circuit (I
24.6.6
646/995
ALERT
rc_w0
SMB
15
rc_w0
TIME
OUT
14
Status register 1 (I2C_SR1)
Address offset: 0x14
Reset value: 0x0000
Bit 15 SMBALERT: SMBus alert
Bit 14 TIMEOUT: Timeout or Tlow error
Bit 13 Reserved, forced by hardware to 0.
Bit 12 PECERR: PEC Error in reception
Bit 11 OVR: Overrun/Underrun
Res.
13
– Cleared by software writing 0, or by hardware when PE=0.
– When set in slave mode: slave resets the communication and lines are released by
– When set in master mode: Stop condition sent by hardware
– Cleared by software writing 0, or by hardware when PE=0.
Note: If the DR write occurs very close to SCL rising edge, the sent data is unspecified and a
rc_w0
ERR
PEC
12
In SMBus host mode:
0: no SMBAlert
1: SMBAlert event occurred on pin
In SMBus slave mode:
0: no SMBAlert response address header
1: SMBAlert response address header to SMBAlert LOW received
0: No timeout error
1: SCL remained LOW for 25 ms (Timeout)
or
Master cumulative clock low extend time more than 10 ms (Tlow:mext)
or
Slave cumulative clock low extend time more than 25 ms (Tlow:sext)
hardware
0: no PEC error: receiver returns ACK after PEC reception (if ACK=1)
1: PEC error: receiver returns NACK after PEC reception (whatever ACK)
–Cleared by software writing 0, or by hardware when PE=0.
0: No overrun/underrun
1: Overrun or underrun
–Set by hardware in slave mode when NOSTRETCH=1 and:
–In reception when a new byte is received (including ACK pulse) and the DR register has
–In transmission when a new byte should be sent and the DR register has not been written
–Cleared by software writing 0, or by hardware when PE=0.
not been read yet. New received byte is lost.
yet. The same byte is sent twice.
rc_w0
hold timing error occurs
2
OVR
C) interface
11
rc_w0
AF
10
ARLO
rc_w0
9
Doc ID 13902 Rev 9
BERR
rc_w0
8
TxE
7
r
RxNE
6
r
Res.
5
STOP
4
F
r
ADD10
3
r
BTF
2
r
ADDR
1
r
RM0008
SB
0
r