UPD78F1146AGB-GAH-AX Renesas Electronics America, UPD78F1146AGB-GAH-AX Datasheet - Page 270

• Manufacturer Part Number: UPD78F1146AGB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1146AGB-GAH-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 50
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

268
Address: FFF9FH
(4) Real-time counter control register 2 (RTCC2)
RTCC2
Symbol
The RTCC2 register is an 8-bit register that is used to control the interval interrupt function and the RTCDIV
pin.
RTCC2 can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Note
Cautions 1. Change ICT2, ICT1, and ICT0 when RINTE = 0.
RCLOE2
RCLOE0 and RCLOE2 must not be enabled at the same time.
RCKDIV
RINTE
RINTE
<7>
2. When the output from RTCDIV pin is stopped, the output continues after a maximum of
3. After the real-time counter starts operating, the output width of the RTCDIV pin may be
0
1
1
1
1
1
1
1
0
1
0
1
After reset: 00H
two clocks of f
stopped immediately after entering the high level, a pulse of at least one clock width of f
may be generated.
shorter than as set during the first interval period.
Figure 7-5. Format of Real-Time Counter Control Register 2 (RTCC2)
Note
Output of RTCDIV pin is disabled.
Output of RTCDIV pin is enabled.
RTCDIV pin outputs 512 Hz. (1.95 ms)
RTCDIV pin outputs 16.384 kHz. (0.061 ms)
RCLOE2
ICT2
<6>
×
0
0
0
0
1
1
1
XT
R/W
and enters the low level. While 512 Hz is output, and when the output is
CHAPTER 7 REAL-TIME COUNTER
RCKDIV
ICT1
<5>
×
0
0
1
1
0
0
1
User’s Manual U17854EJ9V0UD
Selection of RTCDIV pin output frequency
ICT0
×
0
1
0
1
0
1
×
4
0
RTCDIV pin output control
Interval interrupt is not generated.
2
2
2
2
2
2
2
6
7
8
9
10
11
12
/f
/f
/f
/f
/f
/f
/f
XT
XT
XT
XT
XT
XT
XT
(1.953125 ms)
(3.90625 ms)
(7.8125 ms)
(15.625 ms)
3
0
(31.25 ms)
(62.5 ms)
(125 ms)
Interval interrupt (INTRTCI) selection
ICT2
2
ICT1
1
ICT0
0
XT