M16C65 Datasheet, PDF (439/829 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.
20. Real-Time Clock
RTCCSEC
RTCCMP0
RTCCMP1
RTCCMIN
RTCCHR _PMCMP
BSY
HRIE
MNIE
SEIE
Comparator ^Match
Comparator ^Match
Comparator ^Match
Control
Circuit
Comparator ^Match
TOENA
RTCOUT pin
RTC compare interrupt
(IR bit in RTCCIC
register)
RTCCMP0
RTCCMP1
RCS1, RCS0
f1 _00b
fC
10b
Write 1
TSTART
R
TCSTF
SQ
1 sec generation
circuit
RCS1, RCS0 ^BSY
RCS4 to RCS2
RTCSEC
Overflow
RTCMIN
Overflow
Initialize
RTCPM
RTCHR
RTCWK
H12H24
Overflow
“000b”
WKIE
DYIE
SEIE
MNIE
HRIE
TCSTF, TOENA, RTCPM, H12H24, TSTART
SEIE, MNIE, HRIE, DYIE, WKIE, RTCCMP0, RTCCMP1
RCS4 to RCS0 : Bits in the RTCCSR register
BSY
: Bit in the RTCSEC register
PMCMP
: Bit in the RTCCHR register
: Bits in the RTCCR1 register
: Bits in the RTCCR2 register
RTCWK
RTCHR
RTCMIN
RTCSEC
: Bits WK2 to WK0 in the RTCWK register
: Bits HR11 to HR10 and HR03 to HR00 in the RTCHR register
: Bits MN12 to MN10 and MN03 to MN00 in the RTCMIN register
: Bits SC12 to SC10 and SC03 to SC00 in the RTCSEC register
RTCCHR : Bits HCMP11 to HCMP10 and HCMP03 to HCMP00 in the RTCCHR register
RTCCMIN : Bits MCMP12 to MCMP10 and MCMP03 to MCMP00 in the RTCCMIN register
RTCCSEC : Bits SCMP12 to SCMP10 and SCMP03 to SCMP00 in the RTCCSEC register
Figure 20.1 Real-Time Clock Block Diagram
RTCCMP1
RTC periodic interrupt
(IR bit in RTCTIC
register)
Table 20.2 I/O Port
Pin Name
I/O Type
RTCOUT
Output
Compare output
Function
REJ09B0484-0030 Rev.0.30 Sep 09, 2008
Page 404 of 791