UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 221

• Manufacturer Part Number: UPD78F0552MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0552MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2-L
(4) Internal oscillation mode register (RCM)
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
This register sets the operation mode of internal oscillator.
RCM can be set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets this register to 80H
Address: FFA0H
Symbol
RCM
Notes 1. The value of this register is 00H immediately after a reset release but automatically changes to
Caution When setting RSTOP to 1, be sure to confirm that the CPU operates with a clock other
LSRSTOP
RSTOP
RSTS
RSTS
<7>
2. Bit 7 is read-only.
0
1
0
1
0
1
After reset: 80H
than the internal high-speed oscillation clock.
following conditions.
<1> 78K0/KY2-L, 78K0/KA2-L, and 78K0/KB2-L
<2> 78K0/KC2-L
In addition, stop peripheral hardware that is operating on the internal high-speed
oscillation clock before setting RSTOP to 1.
80H after internal high-speed oscillator has been stabilized.
Figure 5-7. Format of Internal Oscillation Mode Register (RCM)
• When MCS = 1 (when CPU operates with the high-speed system clock)
• When MCS = 1 (when CPU operates with the high-speed system clock)
• When CLS = 1 (when CPU operates with the subsystem clock)
Waiting for accuracy stabilization of internal high-speed oscillator
Stability operating of internal high-speed oscillator
Internal low-speed oscillator oscillating
Internal low-speed oscillator stopped
Internal high-speed oscillator oscillating
Internal high-speed oscillator stopped
6
0
Note 1
R/W
5
0
Note 2
Internal high-speed oscillator oscillating/stopped
Internal low-speed oscillator oscillating/stopped
Note 1
.
Status of internal high-speed oscillator
4
0
3
0
CHAPTER 5 CLOCK GENERATOR
Specifically, set under either of the
2
0
LSRSTOP
<1>
RSTOP
<0>
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