M30245_06 RENESAS [Renesas Technology Corp], M30245_06 Datasheet - Page 101

• 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 2.5.6. Serial interface special function-related registers (5)
UARTi special mode register 3 (i= 0 to 3)
b7
b6
b5
page 92 of 354
b4
b3
b2
b1
b0
Note 1: Set SS function after setting CTS/RTS disable bit (bit 4 of UARTi transfer/receive
Note 2: Only “0” may be written.
Note 3: These bits are used for SDAi (TxDi) output digital delay when using UARTi for I
Note 4: The amount of delay varies with the load on SCLi and SDAi pins.
Bit Symbol
NODC
CKPH
DINC
ERR
SSE
DL0
DL1
DL2
Symbol
UiSMR3 (i=0 to 3) 03A5
control register 0) to “1”
interface. Otherwis set to “000”.
When external clock is selected, delay is increased by approximately 100ns.
SS port function
enable bit (Note 1)
Clock phase set bit
Serial input port
set bit
Clock output
select bit
Fault error flag
SDA (TxDi) digital
delay time set bit
(Notes 3,4)
Bit Name
16
, 0365
b7 b6 b5
0 0 0 : No delay
0 0 1 : 1 to 2-cycle of UiBRG count source
0 1 0 : 2 to 3-cycle of UiBRG count source
0 1 1 : 3 to 4-cycle of UiBRG count source
1 0 0 : 4 to 5-cycle of UiBRG count source
1 0 1 : 5 to 6-cycle of UiBRG count source
1 1 0 : 6 to 7-cycle of UiBRG count source
1 1 1 : 7 to 8-cycle of UiBRG count source
Address
0 : SS function disabled
1 : SS function enabled
0 : No clock delay
1 : Clock delay
0 : Select TxDi and RxDi (master mode)
1 : Select STxDi and SRxDi (slave mode)
0 : CLKi is CMOS output
1 : CLKi is N-channel open drain output
0 : No fault error
1 : Fault error (Note 2)
16
, 0335
16
, 0325
Function
16
2. Serial Interface Special Function
When reset
00
16
R W
2
C