Renesas M16C/29 Series Hardware Manual page 460

M16C/29 Group
1.11.2 CAN Transceiver in Boot Mode
When programming the flash memory in boot mode via CAN bus, the operation mode of CAN transceiver
should be set to "high-speed mode" or "normal operation mode". If the operation mode is controlled by
the microcomputer, CAN transceiver must be set the operation mode to "high-speed mode" or "normal
operation mode" before programming the flash memory by changing the switch etc. Table 1.11.2 and
1.11.3 show pin connections of CAN transceiver.
Table 1.11.2 Pin Connections of CAN Transceiver (In case of PCA82C250: Philips product)
Rs pin (Note 1) "H"
CAN communication impossible
Connection
Note 1: The pin which controls the operation mode of CAN transceiver.
Note 2: Connect to enabled port to control CAN transceiver.
Table 1.11.3 Pin Connections of CAN Transceiver (In case of PCA82C252: Philips product)
_______
STB pin (Note 1) "L"
EN pin (Note 1) "L"
CAN communication impossible
Connection
Note 1: The pin which controls the operation mode of CAN transceiver.
Note 2: Connect to enabled port to control CAN transceiver.
Rev.1.00 Nov 01,2004
REJXXXXXXX-0100Z
Standby mode
M16C/6NL
PCA82C250
CTx TxD
0
CRx RxD
0
Por Rs
t (Note 2)
Switch OFF
Sleep mode
M16C/6NL
PCA82C252
CTx TxD
0
CRx RxD
0
Por STB
t (Note 2)
Por EN
t (Note 2)
Switch OFF
page 26 of 31
"L"
possible
M16C/6NL
CANH
CANL
Por
t (Note 2)
"H"
"H"
possible
M16C/6NL
CANH
CANL
Por
t (Note 2)
Por
t (Note 2)
High-speed mode
PCA82C250
CTx TxD CANH
0
CRx RxD CANL
0
Rs
Switch ON
Normal operation mode
PCA82C252
CTx TxD CANH
0
CRx RxD CANL
0
STB
EN
Switch ON