CHAPTER 22 INTERRUPT FUNCTIONS
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User’s Manual U12697EJ3V0UM
(3) Example of use of type A
An example is shown below in which data received via the asynchronous serial interface is transferred to a buffer
area in internal RAM.
Figure 22-25. Asynchronous Serial Reception
Remark
Addresses in the figure are the values when the LOCATION 0H instruction is executed.
When the LOCATION 0FH instruction is executed, 0F0000H should be added to the values in the figure.
(Internal RAM)
0FE7FH
Channel pointer 7FH
Mode register 11H
Note
Lower 8 bits of RXB1 address
Type A, SFR
→
Memory, 8-bit transfer,
interrupt request generation when
MSC = 0
–1
Internal bus
MSC 0EH
SFRP 74H
Note
0FE70H
R
X
D1/P20
INTSR1 macro service request
Receive buffer
(RXB1)
Shift register