UPD784915B Datasheet, PDF (16/86 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784915B, 784916B
Table 2-1. I/O Circuit Type of each Pin and Recommended Connection of Unused Pins (2/2)
Pin
DFGIN
DPGIN
CFGIN, CFGCPIN
CSYNCIN
REEL0IN/INTP3, REEL1IN
CTLOUT1
CTLOUT2
CFGAMPO
CTLIN
VREFC
CTLDLY
PWM0, PWM1
PTO00 to PTO02
NMI
INTP0
INTP1, INTP2
AVDD1, AVDD2
AVREF, AVSS1, AVSS2
RESET
XT1
XT2
IC
I/O Circuit Type
—
—
—
—
—
3
I/O
Input
Output
I/O
Output
—
Output
Recommended Connection of Unused Pins
When ENDRUM = 0: Connect to VSS
When ENDRUM = 0 or ENDRUM = 1 and SELPGSEPA
= 0: Connect to VSS
When ENCAP = 0: Connect to VSS
When ENCSYN = 0: Connect to VSS
When ENREEL = 0: Connect to VSS
Leave open
When ENCTL = 0 and ENCOMP = 0: Connect to VSS
When ENCTL = 1: Leave open
Leave open
When ENCTL = 0: Leave open
When ENCTL = 0 and ENCAP = 0 and ENCOMP = 0:
Leave open
Leave open
Leave open
2
Input Connect to VDD
Connect to VDD or VSS
2-A
Input Connect to VDD
—
—
Connect to VDD
Connect to VSS
2
—
—
—
—
Connect to VSS
Leave open
Directly connect to VSS
Remark ENDRUM : bit 2 of amplifier control register (AMPC)
SELPGSEPA: bit 2 of amplifier mode register 0 (AMPM0)
ENCAP
: bit 3 of amplifier control register (AMPC)
ENCSYN : bit 5 of amplifier control register (AMPC)
ENREEL : bit 6 of amplifier control register (AMPC)
ENCTL
: bit 1 of amplifier control register (AMPC)
ENCOMP : bit 4 of amplifier control register (AMPC)
16