AT32UC3C1512C Automotive Atmel Corporation, AT32UC3C1512C Automotive Datasheet - Page 747

• Manufacturer Part Number: AT32UC3C1512C Automotive
• Manufacturer: Atmel Corporation

28.9.3
Name:
Access Type:
Offset:
Reset Value:
• EXP: Clock Prescaler
• SUDAT: Data Setup Cycles
• TTOUT: SMBus T
• TLOWS: SMBus T
9166C–AVR-08/11
31
23
15
7
Used to specify how to prescale the SMBus TLOWS counter. The counter is prescaled according to the following formula:
Non-prescaled clock cycles for data setup count. Used to time T
This timing is used for timing the ACK/NAK bits, and any data bits driven in slave transmitter mode.
Prescaled clock cycles used to time SMBus T
Prescaled clock cycles used to time SMBus T
Timing Register
TIMEOUT
LOW:SEXT
30
22
14
6
TR
Read/Write
0x08
0x00000000
Cycles
Cycles
EXP
29
21
13
5
TIMEOUT
LOW:SEXT
f
PRESCALED
28
20
12
4
.
TLOWS
.
SUDAT
TTOUT
=
f
------------------------ -
2
CLK_TWIS
(
EXP
SU_DAT
27
19
11
3
-
+
1
. Data is driven SUDAT cycles after TWCK low detected.
)
26
18
10
2
-
25
17
9
1
-
AT32UC3C
24
16
8
0
-
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