M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 245

• 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. 8.8.1 Initial setting example of repeat sweep mode
b7
A-D control register and A-D sweep pin select register
0
1 1
Note : Write each bit (except bit 6) of the A-D control register and each bit of the A-D sweep pin
select register when the A-D conversion stops (before trigger occurs).
b0
b7
Port P7 direction register
Trigger select bit
0 : Internal trigger
1 : External trigger
A-D conversion start bit
0: Stop A-D conversion
A-D conversion frequency (
select bit
0 : f
1 : f
Repeat sweep mode
b7
A-D control register (address 1E
Set A-D conversion start bit to “1”
Selecting internal trigger
2
2
1
divided by 4
divided by 2
Operation start
7702/7703 Group User’s Manual
b0
Trigger occur
b0
AN
AN
AN
AN
AN
AN
AN
AN
Port P7 direction register (address 11
A-D control register (address 1E
A-D conversion start bit
AD
0
1
2
3
4
5
6
7
)
Selecting external trigger
16
)
Set the bits corresponding
to analog input pins to “0.”
Set bit 7 to “0” when
selecting external trigger.
b7
Input falling edge to
AD
TRG
16
)
16
pin
)
b0
A-D sweep pin select register (address 1F
A-D sweep pin select bits
b1 b0
A-D CONVERTER
0 0 : AN
0 1 : AN
1 0 : AN
1 1 : AN
8.8 Repeat sweep mode
0
0
0
0
, AN
–AN
–AN
–AN
1
3
5
7
(2 pins)
(4 pins)
(6 pins)
(8 pins)
: “0” or “1”
16
)
8–25