UPD78P4916 Datasheet, PDF (17/56 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLER

µPD78P4916
Table 2-1. Pin I/O Circuits and Recommended Connection of Unused Pins (2/2)
Pins
DFGIN
DPGIN
CFGIN, CFGCPIN
CSYNCIN
REEL0IN/INTP3, REEL1IN
CTLOUT1
CTLOUT2
CFGAMPO
CTLIN
VREFC
CTLDLY
PWM0, PWM1
PTO00-PTO02
NMI
INTP0
INTP1, INTP2
AVDD1, AVDD2
AVREF, AVSS1, AVSS2
RESET
XT1
XT2
IC
I/O circuit types Direction
—
Input
—
Output
—
I/O
—
Output
—
—
3
Output
2
Input
2-A
Input
—
—
2
—
—
—
Recommended connection of unused pins
ENDRUM = 0: Connect to VSS.
ENDRUM = 0, or ENDRUM = 1 and SELPGSEPA = 0:
Connect to VSS.
ENCAP = 0: Connect to VSS.
ENCSYN = 0: Connect to VSS.
ENREEL = 0: Connect to VSS.
Leave unconnected.
When ENCTL and ENCOMP = 0 and 0: Connect to VSS.
ENCTL = 1: Leave unconnected.
Leave unconnected.
When ENCTL = 0: Leave unconnected.
When ENCTL, ENCAP, and ENCOMP = 0, 0, and 0:
Leave unconnected.
Leave unconnected.
Leave unconnected.
Connect to VDD.
Connect to VDD or VSS.
Connect to VDD.
Connect to VDD.
Connect to VSS.
—
Connect to VSS.
Leave unconnected.
Connect directly to VSS.
Remark
ENDRUM: Bit 2 of the amplifier control register (AMPC)
SELPGSEPA: Bit 2 of the amplifier mode register 0 (AMPM0)
ENCAP:
Bit 3 of the amplifier control register (AMPC)
ENCSYN:
Bit 5 of the amplifier control register (AMPC)
ENREEL:
Bit 6 of the amplifier control register (AMPC)
ENCTL:
Bit 1 of the amplifier control register (AMPC)
ENCOMP: Bit 4 of the amplifier control register (AMPC)
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