UPD78F1142AGB-GAH-AX Renesas Electronics America, UPD78F1142AGB-GAH-AX Datasheet - Page 145
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UPD78F1142AGB-GAH-AX
Manufacturer Part Number
UPD78F1142AGB-GAH-AX
Description
MCU 16BIT 78K0R/KX3 64-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3r
Datasheet
1.UPD78F1142AGA-HAB-AX.pdf
(880 pages)
Specifications of UPD78F1142AGB-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
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4K 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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1142AGB-GAH-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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(1) Clock operation mode control register (CMC)
This register is used to set the operation mode of the X1/P121, X2/EXCLK/P122, XT1/P123, and XT2/P124 pins,
and to select a gain of the oscillator.
CMC can be written only once by an 8-bit memory manipulation instruction after reset release. This register can
be read by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation clears this register to 00H.
Address: FFFA0H
Symbol
CMC
Cautions 1. CMC can be written only once after reset release, by an 8-bit memory
Remark f
OSCSELS
EXCLK
EXCLK
AMPH
Figure 5-2. Format of Clock Operation Mode Control Register (CMC)
7
0
0
1
1
0
1
0
1
After reset: 00H
X
2. After reset release, set CMC before X1 or XT1 oscillation is started as set by the
3. Be sure to set AMPH to 1 if the X1 clock oscillation frequency exceeds 10 MHz.
4. It is recommended to set the default value (00H) to CMC after reset release, even
:
Input port mode
2 MHz ≤ f
10 MHz < f
XT1 oscillation mode
OSCSEL
manipulation instruction.
clock operation status control register (CSC).
when the register is used at the default value, in order to prevent malfunctioning
during a program loop.
OSCSEL
Subsystem clock pin operation mode
X1 clock oscillation frequency
6
0
1
0
1
X
X
≤ 10 MHz
≤ 20 MHz
CHAPTER 5 CLOCK GENERATOR
Input port mode
X1 oscillation mode
Input port mode
External clock input mode
High-speed system clock
R/W
pin operation mode
User’s Manual U17854EJ9V0UD
0
5
Control of X1 clock oscillation frequency
OSCSELS
4
Input port
Crystal resonator connection
Input port
Crystal/ceramic resonator connection
Input port
Input port
3
0
XT1/P123 pin
X1/P121 pin
2
0
External clock input
X2/EXCLK/P122 pin
1
0
XT2/P124 pin
AMPH
0
143
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