upd17240 Renesas Electronics Corporation., upd17240 Datasheet - Page 17

• Manufacturer Part Number: upd17240
• Description: 4-bit Single-chip Microcontrollers For Small General-purpose Infrared Remote Control Transmitters
• Manufacturer: Renesas Electronics Corporation.

Note
Remark entry
Instruction
BR addr
CALL addr
SYSCAL entry
BR @AR
CALL @AR
MOVT DBF, @AR
RET
RETSK
RETI
Other instructions
(including skip instruction)
On acknowledging interrupt
Watchdog timer reset,
RESET pin,
reset by stack pointer
Priority
1
2
3
µ PD17240:
µ PD17241:
µ PD17242, 17243:
µ PD17244, 17245, 17246: b
entry
Figure 2-3. Value of Program Counter on Execution of Each Instruction
Internal
External
Internal
Internal/External
Program Counter
H
L
: Lower 4 bits of entry
: Higher 3 bits of entry
µ PD17240, 17241, 17242, 17243, 17244, 17245, 17246
Page 0
Page 1
Page 2
Page 3
SGR
Re-
tained
Re-
tained
Re-
tained
Table 2-2. Interrupt Vector Address
1
0
0
8-bit timer
Rising and falling edges of INT pin
Basic interval timer
b
b
b
b
0
0
0
0
0
0
1
1
0
0
0
12
to b
to b
to b
to b
Data Sheet U15002EJ1V1DS
Contents (return address) of address stack register (ASR)
Interrupt Source
b
0
1
0
1
0
0
0
10
11
12
12
11
, SGR
b
0
10
Contents of Program Counter (PC)
entry
specified by stack pointer (SP)
b
Vector address of each interrupt
0
Contents of address register
9
H
b
0
8
Operand of instruction (addr)
Operand of instruction (addr)
Increment
b
0
0
7
b
0
0
6
0004H
0003H
0002H
b
0
0
5
b
0
0
Vector Address
4
Note
b
0
3
b
0
entry
2
b
L
0
1
b
0
0
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