UPD784026 Renesas Electronics Corporation., UPD784026 Datasheet - Page 582

• Manufacturer Part Number: UPD784026
• Description: 16/8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(3) Example of use of type A
542
Remark Addresses in the figure are the values when the LOCATION 0 instruction is executed.
An example is shown below in which data received via the asynchronous serial interface is transferred to a buffer area
in internal RAM.
When the LOCATION 0FH instruction is executed, 0F0000H should be added to the values in the figure.
R
X
D/P30
Receive Buffer
Shift Register
Figure 20-24 Asynchronous Serial Reception
(RXB)
0FE7FH
0FE70H
CHAPTER 20 INTERRUPT FUNCTIONS
Channel Pointer 7FH
Mode Register 11H
(Internal RAM)
Internal Bus
SFRP 8CH*
MSC 0EH
INTSR Macro Service Request
Type A, SFR
Interrupt Request Generation When
MSC = 0
* Low-Order 8 Bits of RXB Address
–1
Memory, 8-Bit Transfer,