RL78/F13, F14 CHAPTER 15 SERIAL ARRAY UNIT
R01UH0368EJ0210 Rev.2.10 792
Dec 10, 2015
CHAPTER 15 SERIAL ARRAY UNIT
Serial array unit has two serial channels. Each channel can achieve 3-wire serial (CSI), UART, and simplified I
2
C
communication.
Function assignment of each channel supported by the RL78/F13 and RL78/F14 is as shown below.
• Group A products
Unit Channel Used as CSI Used as UART Used as Simplified I
2
C
0 0
CSI00 (supporting SPI
function)
Note 2
UART0 (supporting LIN-bus) IIC00
1
CSI01 (supporting SPI
function)
Note 2
IIC01
• Products of Groups C-1 and D-1
Unit Channel Used as CSI Used as UART Used as Simplified I
2
C
0 0
CSI00 (supporting SPI
function)
Note 2
UART0 (supporting LIN-bus) IIC00
1
CSI01(supporting SPI
function)
Note 2
IIC01
1 0
CSI10 (supporting SPI
function)
Note 1, 2
UART1 IIC10
1 - -
• Products of Groups B, C-2, D-2, and E
Unit Channel Used as CSI Used as UART Used as Simplified I
2
C
0 0
CSI00 (supporting SPI
function)
Note 2
UART0 (supporting LIN-bus) IIC00
1
CSI01(supporting SPI
function)
Note 2
IIC01
1 0
CSI10(supporting SPI
function)
Note 1, 2
UART1 IIC10
1
CSI11 (supporting SPI
function)
Note 2
IIC11
Notes 1. 48-pin, 32-pin and 30-pin products do not have SSI10
___________
pin.
2. Set CKPmn bit of SCRmn register to 1, when SSEmn = 1 (Enables SSImn
____________
pin input).
(m = 0, 1, n = 0, 1)
When “UART0” is used for channels 0 and 1 of the unit 0, CSI00 and CSI01 cannot be used.
Caution Most of the following descriptions in this chapter use the units and channels of the 80-pin products of
RL78/F13 (CAN and LIN incorporated) as an example.
Remark Group A: RL78/F13 (LIN incorporated) products with 20, 30, 32, 48, or 64 pins and 16 Kbytes to 64 Kbytes of
code flash memory
Group B: RL78/F13 (LIN incorporated) products with 48 or 64 pins and 96 Kbytes to 128 Kbytes of code
flash memory or with 80 pins and 64 Kbytes to 128 Kbytes of code flash memory
Group C-1: RL78/F13 (CAN and LIN incorporated) products with 30 or 32 pins
Group C-2: RL78/F13 (CAN and LIN incorporated) products with 48, 64, or 80 pins
Group D-1: RL78/F14 products with 30 or 32 pins
Group D-2: RL78/F14 products with 48, 64, or 80 pins and 48 Kbytes to 96 Kbytes of code flash memory
Group E: RL78/F14 products with 48, 64, or 80 pins and 128 Kbytes to 256 Kbytes of code flash memory or
with 100 pins and 64 Kbytes to 256 Kbytes of code flash memory
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