Table of Contents
Advertisement
Under development
This document is under development and its contents are subject to change.
M16C/6N Group (M16C/6NK, M16C/6NM)
23.14.3 Suggestions to Reduce Power Consumption
When not performing CAN communication, the operation mode of CAN transceiver should be set to
"standby mode" or "sleep mode".
When performing CAN communication, the power consumption in CAN transceiver in not performing
CAN communication can be substantially reduced by controlling the operation mode pins of CAN
transceiver.
Tables 23.4 and 23.5 show recommended pin connections.
Table 23.4 Recommended Pin Connections (In case of PCA82C250: Philips product)
(1)
Rs Pin
"H"
Power Consumption in less than 170 µA
(2)
CAN Transceiver
CAN Communication impossible
Connection
M16C/6NK, M16C/6NM
i = 0, 1
NOTES:
1. The pin which controls the operation mode of CAN transceiver.
2. In case of Ta = 25 °C
3. Connect to enabled port to control CAN transceiver.
Table 23.5 Recommended Pin Connections (In case of PCA82C252: Philips product)
_______
(1)
STB Pin
"L"
(1)
EN Pin
"L"
Power Consumption in less than 50 µA
(2)
CAN Transceiver
CAN Communication impossible
Connection
M16C/6NK, M16C/6NM
i = 0, 1
NOTES:
1. The pin which controls the operation mode of CAN transceiver.
2. Ta = 25 °C
3. Connect to enabled port to control CAN transceiver.
Rev.2.00
Nov 28, 2005
REJ09B0124-0200
Standby Mode
PCA82C250
CTXi
TXD
CRXi
RXD
Por
(3)
Rs
t
"H" output
Sleep Mode
PCA82C252
CTXi
TXD
CRXi
RXD
Por
(3)
t
STB
Por
(3)
t
EN
"L" output
page 365 of 378
"L"
less than 70 mA
possible
M16C/6NK, M16C/6NM
CANH
CANL
Por
Normal Operation Mode
"H"
"H"
less than 35 mA
possible
M16C/6NK, M16C/6NM
CANH
CANL
Por
Por
23. Usage Precaution
High-speed Mode
PCA82C250
CTXi
TXD
CANH
CRXi
RXD
CANL
(3)
Rs
t
"L" output
PCA82C252
CTXi
TXD
CANH
CRXi
RXD
CANL
(3)
t
STB
(3)
t
EN
"H" output
Advertisement
Table of Contents
