M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 187

• Manufacturer Part Number: M37702E6BFS
• Description: EPROM MCU/8BIT CMOS EMULATION CH
• Manufacturer: Renesas Electronics America

Specifications of M37702E6BFS

• Accessory Type: Emulator EPROM MCU
• For Use With/related Products: 7702
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Fig. 7.3.2 Writing data after start of transmission
[When not using interrupts]
UART0 transmit/receive control register 1 (Address 35 )
UART1 transmit/receive control register 1 (Address 3D )
Checking state of UARTi transmit buffer register
b7
UART0 transmit buffer register (Address 32
UART1 transmit buffer register (Address 3A
Writing of next transmit data
b7
b0
1
Transmit buffer empty flag
0: Data present in transmit buffer register
1: No data present in transmit buffer register
(Writing of next transmit data is possible.)
b0
b0
Set transmit data here.
7702/7703 Group User’s Manual
16
16
)
16
)
16
7.3 Clock synchronous serial I/O mode
Note :
This figure shows the bits and registers required
for processing.
Refer to Figure 7.3.5 about the change of flag state
and the occurrence timing of an interrupt request.
The UARTi transmit interrupt request
occurs when the UARTi transmit buffer
register becomes empty.
[When using interrupts]
UARTi transmit interrupt
SERIAL I/O
7–21