M38D59GCHP#U0 Renesas Electronics America, M38D59GCHP#U0 Datasheet - Page 133

• Manufacturer Part Number: M38D59GCHP#U0
• Description: IC 740/38D5 MCU QZ-ROM 80LQFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38D59GCHP#U0

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 12.5MHz
• Connectivity: SIO, UART/USART
• Peripherals: LCD, LED, PWM, WDT
• Number Of I /o: 59
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: QzROM
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

38D5 Group
Rev.3.04
REJ03B0158-0304
3. Executing STP Instruction
Executing the STP instruction sets the LCD enable bit (bit 4 of
LCD mode register1 (address 0013
turns off. To turn the LCD panel on after returning from stop
mode, set the LCD enable bit to “1”.
4. V
To use the LCD drive control circuit while V
voltage equal to V
write “1” to the V
(address 0014
5. LCD Drive Power Supply
Power supply capacitor may be insufficient with the division
resistance for LCD power supply, and the characteristic of the
LCD panel. In this case, there is the method of connecting the
bypass capacitor about 0.1 -0.33 µ F to VL1 -VL3 pins. The
example of a strengthening measure of the LCD drive power
supply is shown below.
Fig. 106 Strengthening measure example of LCD drive
Notes on ROM Correction Function
1. Returning to Main Program
To return to the main program from the correction program, use
the JMP instruction (3-byte instruction).
2. Using ROM Correction Function
If the ROM correction function is used, be sure to enable the
ROM correction enable bit after setting the ROM correction
register.
3. Address
Do not set addresses other than the ROM area in the ROM
correction address registers. Also, do not set the same address in
the ROM correction address 1 register and the ROM correction
address 2 register.
4. ROM Correction Process
Include the ROM correction process in the program beforehand.
L3
Pin
power supply
16
May 20, 2008 Page 131 of 134
)).
L3
CC
connection bit (bit 1 of LCD mode register 2
, apply the V
V
V
V
L2
L1
L3
CC
16
• Connect by the shortest
• Connect the bypass capacitor
(Referential value:0.1−0.33 µF)
)) to “0” and the LCD panel
possible wiring.
to the V
as possible.
voltage to the V
L1
−V
L3
pins as short
L3
is set to the
L3
pin and
5. Using No ROM Correction Function
If the ROM correction function is not used, the ROM correction
vector can be used as normal RAM/ROM. When using as normal
RAM/ROM, be sure to set bits 1 and 0 of the ROM correction
enable register to “0” (disabled).
Notes on Clock Generating Circuit
1. Oscillation Circuit Constants
The oscillation circuit constants vary depending on the resonator.
Use values recommended by the oscillator manufacturer.
A feed-back resistor is implemented between the X
pins (an external feed-back resistor may be required depending
on conditions). As no feed-back resistor is implemented between
X
2. Transition between Modes
When the MCU transits between on-chip oscillator mode, X
mode, or low-speed mode, both the X
must be stabilized. Be especially careful when turning the power
on and returning from stop mode. Refer to the clock state
transition diagram for a transition between each mode. Also, set
the frequency in the condition that f(X
When X
external clock input to X
V
3. Oscillation Stabilization
Before executing the STP instruction, set the values * to generate
the wait time required for oscillation stabilization to timer 1 latch
and timer 2 latch (low-order 8 bits of timer 1 and high-order 8
bits of timer 2).
*Referential values
4. Low-Speed Mode, X
To use low-speed mode or X
stabilizes after enabling the X
oscillation, then switch to the mode.
(Set values according to your oscillator and system)
CIN
CC
• OSCSEL = “L” in the flash memory and QzROM versions:
• OSCSEL = “H” in the QzROM version:
through a resistor.
and X
..................................................................... 0005
.....................................................................01FF
IN
COUT
mode is not used (the X
, add a feedback resistor of about 10 M Ω .
IN
IN
is not performed), connect X
Mode
IN
mode, wait until oscillation
IN
-X
IN
IN
IN
OUT
) ≥ 3 × (X
-X
and X
OUT
and X
CIN
oscillation or
CIN
IN
CIN
oscillations
).
16
16
and X
-X
or more
or more
COUT
IN
OUT
IN
to