M30245_06 RENESAS [Renesas Technology Corp], M30245_06 Datasheet - Page 102

• Manufacturer Part Number: M30245_06
• Description: RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES
• Manufacturer: RENESAS [Renesas Technology Corp]

M30245 Group
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
Figure 2.5.7. Serial interface special function-related registers (6)
Interrupt request cause select register
b7
b7
UARTi special mode register 4 (i= 0 to 3)
b6
b6
b5
b5
b4
b4
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b3
b3
b2
b2
b1
b1
b0
b0
Note 1: These bits automatically become “0” when a start condition is generated.
Note 2: This bit is unavailable when SCLi is external clock.
Bit Symbol
Bit Symbol
RSTAREQ
STAREQ
STPREQ
STSPSEL
Nothing is assigned.
Write “0” when writing to this bit. The value is indeterminate when read.
IFSR0
IFSR1
IFSR2
IFSR6
IFSR7
SCLHI
SWC9
ACKD
ACKC
Symbol
UiSMR4 (i=0 to 3) 03A4
Symbol
IFSR
Restart condition
generate bit (Note 1)
Start condition
generate bit (Note 1)
SCL, SDA output
select bit
Stop condition
generate bit (Note 1)
SCL wait output bit 3
Bus collision interrupt
request cause select bit 0
ACK data bit
ACK data output
enable bit
SCL output stop
enable bit
Bus collision interrupt
request cause select bit 1
INT0 interrupt polarity
swiching bit
INT1 interrupt polarity
swiching bit
INT2 interrupt polarity
swiching bit
Bit Name
Bit name
Address
035F
16
16
, 0364
,
Address
0 : Clear
1 : Start
0 : Clear
1 : Start
0 : Ordinal block
1 : Start/stop condition generate block
0 : SI/O data output
1 : ACKD output
0 : Disabled
1 : Enabled
0 : Clear
1 : Start
0 : ACK
1 : NACK
0 : SCL “L” hold disabled
1 : SCL “L” hold enabled (Note 2)
16
, 0334
0 : One edge
1 : Two edges
0 : UART0 Bus collision /
1 : UART2 Bus collision /
0 : UART1 Bus collision /
1 : UART3 Bus collision /
0 : One edge
1 : Two edges
0 : One edge
1 : Two edges
Start/stop condition detection /
Trouble error detection
Start/stop condition detection /
Trouble error detection
Start/stop condition detection /
Trouble error detection
Start/stop condition detection /
Trouble error detection
When reset
16
, 0324
00
16
Function
16
Function
When reset
2. Serial Interface Special Function
00
16
R W
R W