M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 97

• 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. 5.2.4 Structure of timer Ai interrupt control register
5.2.4 Timer Ai interrupt control register
Figure 5.2.4 shows the structure of the timer Ai interrupt control register. For details about interrupts, refer
to “Chapter 4. INTERRUPTS.”
(1) Interrupt priority level select bits (bits 2 to 0)
(2) Interrupt request bit (bit 3)
b7
These bits select a timer Ai interrupt’s priority level. When using timer Ai interrupts, select priority
levels 1 to 7. When a timer Ai interrupt request occurs, its priority level is compared with the
processor interrupt priority level (IPL), so that the requested interrupt is enabled only when its priority
level is higher than the IPL. (However, this applies when the interrupt disable flag (I) = “0.”) To
disable timer Ai interrupts, set these bits to “000
This bit is set to “1” when the timer Ai interrupt request occurs. This bit is automatically cleared to
“0” when the timer Ai interrupt request is accepted. This bit can be set to “1” or “0” by software.
b6
b5
b4
b3
b2
b1
b0
Timer Ai interrupt control registers (i = 0 to 4) (Addresses 75
Note: Use the SEB or CLB instruction to set each interrupt control register.
7 to 4
Bit
1
2
3
0
Interrupt priority level select bits
Interrupt request bit
Nothing is assigned.
7702/7703 Group User’s Manual
Bit name
2
” (level 0).
b2 b1 b0
0 0 0 : Level 0 (Interrupt disabled)
0 0 1 : Level 1
0 1 0 : Level 2
0 1 1 : Level 3
1 0 0 : Level 4
1 0 1 : Level 5
1 1 0 : Level 6
1 1 1 : Level 7
0 : No interrupt request
1 : Interrupt request
Functions
Low level
High level
5.2 Block description
16
to 79
16
)
TIMER A
Undefined
At reset
0
0
0
0
RW
RW
RW
RW
RW
–
5–7