LC87F1M16A Datasheet, PDF (12/32 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller with Full-Speed USB

LC87F1M16A
On-chip Debugger Pin Connection Requirements
For the treatment of the on-chip debugger pins, refer to the separately available documents entitled “Rd87 On-chip
Debugger Installation Manual”
Recommended Unused Pin Connections
Port Name
P00 to P07
Open
Board
Recommended Unused Pin Connections
Output low
Software
P10 to P17
Open
Output low
P20 to P27
Open
Output low
P31 to P34
Open
Output low
P70 to P73
Open
Output low
PWM0, PWM1
Open
Output low
D+, D-
Open
Output low
XT1
Pulled low with a 100kΩ resistor or less
-
XT2
Open
Output low
OWP0
Pulled low with a 100kΩ resistor
-
Note: P34 and UFILT share the same pin, so if USB function is used, the pin must be set to input mode.
Port Output Types
The table below lists the types of port outputs and the presence/absence of a pull-up resistor.
Data can be read into any input port even if it is in the output mode.
Port Name
P00 to P07
P10 to P17
P20 to P27
P31 to P34
P70
Option selected in
units of
1 bit
-
Option type
1
2
No
CMOS
Output type
Nch-open drain
Nch-open drain
P71 to P73
-
No
CMOS
PWM0, PWM1
-
No
CMOS
D+, D-
-
No
CMOS
XT1
-
No
Input only
XT2
-
No
32.768kHz crystal resonator output (N channel open
drain when in general-purpose output mode)
Pull-up resistor
Programmable
Programmable
Programmable
Programmable
No
No
No
No
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