M38513E4FP#U0 Renesas Electronics America, M38513E4FP#U0 Datasheet - Page 19

• Manufacturer Part Number: M38513E4FP#U0
• Description: IC 740 MCU ROM 16K 42SSOP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38513E4FP#U0

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SIO, UART/USART
• Peripherals: PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 5x10b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 42-SSOP
• Package: 42SSOP
• Family Name: 740
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 34
• Interface Type: I2C-BUS
• On-chip Adc: 5-chx10-bit
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

SERIAL I/O
Serial I/O can be used as either clock synchronous or asynchro-
nous (UART) serial I/O. A dedicated timer is also provided for baud
rate generation.
Fig. 14 Block diagram of clock synchronous serial I/O
Fig. 15 Operation of clock synchronous serial I/O function
16
Write pulse to receive/transmit
buffer register (address 0018
Receive enable signal S
Transfer shift clock
(1/2 to 1/2048 of the internal
clock, or an external clock)
Notes 1: As the transmit interrupt (TI), either when the transmit buffer has emptied (TBE=1) or after the transmit shift operation has
P2
P2
P2
P2
7
2: If data is written to the transmit buffer register when TSC=0, the transmit clock is generated continuously and serial data
3: The receive interrupt (RI) is set when the receive buffer full flag (RBF) becomes “1” .
6
4
Serial output TxD
/S
5
/S
Serial input RxD
/R
/T
ended (TSC=1), by setting the transmit interrupt source selection bit (TIC) of the serial I/O control register.
is output continuously from the TxD pin.
RDY
CLK
X
X
X
IN
D
D
BRG count source selection bit
RDY
F/F
16
)
TBE = 0
1/4
Falling-edge detector
TBE = 1
TSC = 0
Receive buffer register
Receive shift register
D
D
0
0
Transmit buffer register
Transmit shift register
Data bus
Data bus
D
D
Address 0018
1
1
Shift clock
Serial I/O synchronous
clock selection bit
Frequency division ratio 1/(n+1)
Baud rate generator
Address 0018
Shift clock
Address 001C
D
D
(1) Clock Synchronous Serial I/O Mode
Clock synchronous serial I/O mode can be selected by setting the
serial I/O mode selection bit of the serial I/O control register (bit 6
of address 001A
For clock synchronous serial I/O, the transmitter and the receiver
must use the same clock. If an internal clock is used, transfer is
started by a write signal to the TB/RB.
2
2
16
16
Clock control circuit
Clock control circuit
16
D
D
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Serial I/O control register
3
3
Transmit interrupt source selection bit
Receive buffer full flag (RBF)
Serial I/O status register
1/4
16
) to “1”.
D
D
MITSUBISHI MICROCOMPUTERS
4
4
Receive interrupt request (RI)
Transmit buffer empty flag (TBE)
Transmit shift completion flag (TSC)
D
D
Transmit interrupt request (TI)
5
5
(Built-in 16 KB ROM)
Address 001A
Address 0019
D
D
3851 Group
6
6
Overrun error (OE)
detection
16
RBF = 1
TSC = 1
D
D
16
7
7