M16C65 Datasheet, PDF (669/829 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M16C/60

Under development
M16C/65 Group
Preliminary Specification
This is a preliminary specification and is subject to change.
26. Consumer Electronics Control (CEC) Function
ACK is returned by setting the CRADRI27 bit to 1 (selects 1111b) when the Follower address is 1111b
(Broadcast) and the CRACK bit in the CECC2 register is 1 (ACK output in reception is inserted by
hardware).
When the received Destination address matches the address selected by the CRADRI1 or CRADRI2
register, it may be described as Destination address match in this chapter.
26.2.12 Port Control Register (PCR)
Port Control Register
b7 b6 b5 b4 b3 b2 b1 b0
0
Symbol
PCR
Address
0366h
After Reset
0000 0XX0b
Bit Symbol
Bit Name
Function
RW
PCR0 Port P1 control bit
When reading the P1 register:
0 : Input level of pins P1_0 to P1_7 is read
when the port is set to input.
Port latch is read when the port is set to
RW
output.
1 : Port latch is read whether the port is set to
input or output.
—
(b2-b1)
No register bits. If necessary, set to 0. Read as undefined value
RW
PCR3 Reserved bit
Set to 0
RW
PCR4 CEC output enable bit
0 : CEC output disabled
1 : CEC output enabled
RW
PCR5 INT6 input enable bit
0 : Enabled
1 : Disabled
RW
PCR6 INT7 input enable bit
0 : Enabled
1 : Disabled
RW
PCR7 Key input enable bit
0 : Enabled
1 : Disabled
RW
PCR4 (CEC Output Enable Bit) (b4)
To use the CEC function, set the PCR4 bit to 1 (CEC output enabled).
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 634 of 791