MC68HC908LJ24CPB Freescale Semiconductor, MC68HC908LJ24CPB Datasheet - Page 235
MC68HC908LJ24CPB
Manufacturer Part Number
MC68HC908LJ24CPB
Description
IC MCU 24K FLASH 8MHZ SPI 64LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908LK24CFUE.pdf
(464 pages)
Specifications of MC68HC908LJ24CPB
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, IRSCI, SPI
Peripherals
LCD, LVD, POR, PWM
Number Of I /o
40
Program Memory Size
24KB (24K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 6x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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12.10.4 RTC Control Register 2 (RTCCR2)
MC68HC908LJ24/LK24 — Rev. 2.1
Freescale Semiconductor
†† Reset by POR only.
* COMEN and RTCE bits are write-protected; unprotect by a write sequence to RTCWE[1:0] in RTCCOMR.
Address:
SECIE — Second Interrupt Enable
TB1IE — Timebase 1 Interrupt Enable
TB2IE — Timebase 2 Interrupt Enable
The RTC control register 2 (RTCCR2) contains control and clock
selection bits for RTC operation.
COMEN — RTC Compensation Enable
Reset:
Read:
Write:
This read/write bit enables the second flag, SECF, to generate CPU
interrupt requests. Reset clears the SECIE bit.
This read/write bit enables the timebase1 flag, TB1F, to generate
CPU interrupt requests. Reset clears the TB1IE bit.
This read/write bit enables the timebase2 flag, TB2F, to generate
CPU interrupt requests. Reset clears the TB2IE bit.
This read/write bit enables the clock compensation mechanism for
CGMXCLK frequency errors. Reset has no effect on COMEN bit.
1 = SECF enabled to generate CPU interrupt
0 = SECF not enabled to generate CPU interrupt
1 = TB1F enabled to generate CPU interrupt
0 = TB1F not enabled to generate CPU interrupt
1 = TB2F enabled to generate CPU interrupt
0 = TB2F not enabled to generate CPU interrupt
1 = Compensation mechanism enabled
0 = Compensation mechanism not enabled
COMEN*
$0043
U
Figure 12-9. RTC Control Register 2 (RTCCR2)
Real Time Clock (RTC)
CHRCLR
= Unimplemented
0
0
CHRE
0
RTCE*
0
††
TBH
0
0
0
Real Time Clock (RTC)
0
0
RTC Registers
Data Sheet
0
0
235
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