UPD78F1203MC-CAB-AX Renesas Electronics America, UPD78F1203MC-CAB-AX Datasheet - Page 225
UPD78F1203MC-CAB-AX
Manufacturer Part Number
UPD78F1203MC-CAB-AX
Description
MCU 16BIT 78K0R/LX3 30-SSOP
Manufacturer
Renesas Electronics America
Series
78K0R/Ix3r
Datasheet
1.UPD78F1201MC-CAB-AX.pdf
(1067 pages)
Specifications of UPD78F1203MC-CAB-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
40MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
21
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 6x10b
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:
UPD78F1203MC-CAB-AX
Manufacturer:
RENESAS
Quantity:
15 000
Part Number:
UPD78F1203MC-CAB-AX
Manufacturer:
NEC
Quantity:
20 000
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5.1 Functions of Clock Generator
The clock generator generates the clock to be supplied to the CPU and peripheral hardware.
The following three kinds of system clocks and clock oscillators are selectable.
(1) Main system clock
(2) Subsystem clock
Remark f
<1> X1 oscillator
<2> Internal high-speed oscillator
<3> 40 MHz internal high-speed oscillator
An external main system clock (f
external main system clock input can be disabled by executing the STOP instruction or setting of MSTOP.
As the main system clock, a high-speed system clock (X1 clock or external main system clock) or internal high-
speed oscillation clock can be selected by setting of MCM0 (bit 4 of the system clock control register (CKC)).
Furthermore, the 40 MHz high-speed oscillation clock can be selected by setting SELDSC (bit 2 of the 40 MHz
high-speed oscillation control register (DSCCTL)).
• XT1 clock oscillator
This circuit oscillates a clock of f
Oscillation can be stopped by setting XTSTOP (bit 6 of CSC).
This circuit oscillates a clock of f
Oscillation can be stopped by executing the STOP instruction or setting of MSTOP (bit 7 of the clock
operation status control register (CSC)).
This circuit oscillates clocks of f
with this internal high-speed oscillation clock.
instruction or setting HIOSTOP (bit 0 of CSC).
This circuit oscillates a clock of f
(DSCON) of the 40 MHz internal high-speed oscillation control register (DSCCTL) to 1. Oscillation can
be stopped by setting DSCON to 0.
After a reset release, the 8 MHz internal high-speed oscillator starts oscillating automatically. Afterward,
the 40 MHz internal high-speed oscillator starts oscillating when the DSCON bit of the DSCCTL register
has been set to 1.
f
f
f
f
X
IH
IH40
EX
SUB
:
:
:
: Subsystem clock frequency
: 40 MHz internal high-speed oscillation clock frequency
X1 clock oscillation frequency
Internal high-speed oscillation clock frequency
External main system clock frequency
Note
CHAPTER 5 CLOCK GENERATOR
EX
SUB
= 2 to 20 MHz) can also be supplied from the EXCLK/X2/P122 pin. An
IH
X
User’s Manual U19678EJ1V1UD
= 2 to 20 MHz by connecting a resonator to X1 and X2.
= 8 MHz (TYP.). After a reset release, the CPU always starts operating
= 32.768 kHz by connecting a 32.768 kHz resonator to XT1 and XT2.
IH40
= 40 MHz (TYP.). Oscillation can be started by setting bit 0
Oscillation can be stopped by executing the STOP
223
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