Table 13-2: List Of 3-Wire Serial Interface Pins - NEC V850E/RS1 User Manual

The pins of the 3-wire serial interface (CSIB) function alternately as port pins. For how to select the
alternate function, refer to the descriptions of the registers in Chapter 4 "Port Functions" on
page 105.
Remark:
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Chapter 13 3-Wire Serial Interface (CSIB)

Table 13-2: List of 3-Wire Serial Interface Pins

Pin Name Alternate-Function Pin
SIB0 P40
SIB1 P97
SOB0 P41
SOB1 P98
SCKB0 P42
SCKB1 P99
Figure 13-1: Block Diagram of 3-Wire Serial Interface
CBnCTL1
f /2
XX
f /4
XX
f /8
XX
f /16
XX
f /32
XX
f /64
XX
f (n = 0)
BRG
TOP01 (n = 1)
SCKBn
SIBn
n = 0, 1
User's Manual U16702EE3V2UD00
I/O Function
Serial receive data input (CSIB0)
Input
Serial receive data input (CSIB1)
Serial transmit data input (CSIB0)
Output
Serial transmit data input (CSIB1)
Serial clock I/O (CSIB0)
I/O
Serial clock I/O (CSIB1)
Internal bus
CBnCTL0 CBnCTL2
CBnSTR
Controller
Phase control
CBnTX
SO latch
Shift register
CBnRX
INTCBnT
INTCBnR
Phase
SOBn
control