UPD78F1233GB-GAH-AX Renesas Electronics America, UPD78F1233GB-GAH-AX Datasheet - Page 229

• Manufacturer Part Number: UPD78F1233GB-GAH-AX
• Description: MCU 16BIT 78K0R/LX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1233GB-GAH-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: 50
• 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 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

5.3 Registers Controlling Clock Generator
(1) Clock operation mode control register (CMC)
Remark f
The following eight registers are used to control the clock generator.
• Clock operation mode control register (CMC)
• System clock control register (CKC)
• Clock operation status control register (CSC)
• Oscillation stabilization time counter status register (OSTC)
• Oscillation stabilization time select register (OSTS)
• 40 MHz internal high-speed oscillation control register (DSCCTL)
• Peripheral enable registers 0, 1, 2 (PER0, PER1, PER2)
• Operation speed mode control register (OSMC)
Note
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.
The 78K0R/IB3 doesn’t have the XT1 and XT2 oscillator.
f
f
f
f
f
f
f
f
f
X
IH
IH40
EX
MX
MAIN
XT
SUB
CLK
IL
:
:
:
:
:
:
:
: Subsystem clock frequency
: 40 MHz internal high-speed oscillation clock frequency
: Main system clock frequency
X1 clock oscillation frequency
Internal high-speed oscillation clock frequency
External main system clock frequency
High-speed system clock frequency
XT1 clock oscillation frequency
CPU/peripheral hardware clock frequency
Internal low-speed oscillation clock frequency
CHAPTER 5 CLOCK GENERATOR
User’s Manual U19678EJ1V1UD
227
Note