upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 224

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

224
Notes 1. When CSIEn = 0 (SIOn operation stop status), the SIn, SOn, and SCKn pins can be used as port
Cautions 1. Do not perform bit manipulation of SCLn1 and SCLn0.
Remarks 1. Values in parentheses apply when f
After reset: 00H
After reset: 00H
(n = 0 to 2)
CSIMn
CSISn
2. When CSIEn = 1 (SIOn operation enable status), the SIn pin when only using the transmit function and
2. Be sure to set bits 3 to 6 of the CSIMn register to 0.
2. The selected clock is output from the timer, it is not necessary to set the P26/TI2/TO2 and
functions.
the SOn pin in receive-only mode can be used as port functions.
P27/T31/TO3 pins to timer output mode.
CSIEn
MODEn
SCLn2
CSIEn
7
0
7
0
1
0
1
0
0
0
0
1
1
1
1
R/W
R/W
Operation disable
Operation enable
Transmit/receive mode
Receive-only mode
SCLn1
Shift Register Operation
6
0
6
0
0
0
1
1
0
0
1
1
Operation Mode
CHAPTER 10 SERIAL INTERFACE FUNCTION
SCLn0
User’s Manual U12768EJ4V1UD
Address: CSIS0
5
0
Address: CSIM0
5
0
0
1
0
1
0
1
0
1
SIOn Operation Enable/Disable Specification
XX
External clock input (SCKn)
at n = 0: TM2 output
at n = 1, 2: TM3 output
fxx/8 (2.5 MHz)
fxx/16 (1.25 MHz)
Setting prohibited
Setting prohibited
fxx/32 (625 kHz)
fxx/64 (312.5 kHz)
CSIS1
CSIS2
CSIM1
CSIM2
= 20 MHz.
Transfer Operation Mode Flag
4
0
4
0
Clear
Count operation enable
SIOn write
SIOn read
Transfer Start Trigger
FFFFF2A4H
FFFFF2B4H
FFFFF2C4H
FFFFF2A2H
FFFFF2B2H
FFFFF2C2H
Serial Counter
3
0
3
0
Clock Selection
MODEn
2
0
2
Port function
Serial function + port function
Normal output
Port function
SCLn1
SOn Output
1
0
1
Port
Note 1
SCLn2
SCLn0
0
0
Note