EM78P510N
8-Bit Microcontrollers
5 Pin Description
Table 1 (a) LQFP-48
Pin
Pin No. I/O Type
Description
8-bit bidirectional I/O pins.
P70 ~ P73 are pin-shared with SEG12 ~ SEG15, respectively.
P74 is pin-shared with external Interrupt 0 or SEG18.
P75 is pin-shared with external Interrupt 1 or T1OUT or PWM1.
P76 is pin-shared with external Interrupt 2 or T1CK.
P77 is pin-shared with external Interrupt 3 or T1CAP.
1~4,
I/O
P70~P77
39~42
7-bit bidirectional I/O pins.
P81 is pin-shared with RESET pin.
P82 is pin-shared with Interrupt 8 or AD8 input.
P83 is pin-shared with COM7 or Interrupt 9 or AD7 input.
P84 is pin-shared with A/D reference input pin.
P85 is pin-shared with COM6 or AD6 input.
P86 is pin-shared with COM5 or AD5 input.
P87 is pin-shared with COM4 or AD4 input.
P81~P87 12~18
I/O
8-bit bidirectional I/O pins.
P90 is pin-shared with AD3 input or PWM2.
P91 is pin-shared with AD2 input or BUZ.
P92 ~P93 are pin-shared with AD1 ~ AD0 input, respectively.
P94 ~P97 are pin-shared with COM3 ~ COM0, respectively.
P90~P97 19~26
PA0~PA7 27~34
I/O
I/O
8-bit bidirectional I/O pins.
PA0 ~ PA3 are pin-shared with SEG0 ~ SEG3, respectively.
PA4 is pin-shared with SEG4 or SPI SI pin.
PA5 is pin-shared with SEG5 or SPI SO pin.
PA6 is pin-shared with SEG6 or SPI SCK pin.
PA7 is pin-shared with SEG7 or SPI /SS pin.
8-bit bidirectional I/O pins.
PB0 is pin-shared with SEG8 or external Interrupt 4 or AD9 input.
PB1 is pin-shared with SEG9 or external Interrupt 5 or AD10 input.
PB2 is pin-shared with SEG10 or external Interrupt 6 or AD11 input.
PB3 is pin-shared with SEG11 or external Interrupt 7.
PB4 is pin-shared with SEG16 or UART RX pin.
35~38,
PB0~PB7
I/O
43~46
PB5 is pin-shared with SEG17 or UART TX pin.
PB6 ~ PB7 are pin-shared with SEG19 ~ SEG20, respectively.
4-bit bidirectional I/O pins.
PC0 ~ PC1 are pin-shared with SEG21 ~ SEG22, respectively.
PC2 ~PC3 are pin-shared with Xin ~ Xout, respectively.
47~48
PC0~PC3
I/O
I
10~11
Crystal mode: crystal input
RC mode: pull-high resistor
PLL mode: connect 0.01µF capacitance to GND.
Connect 0.01µF capacitor to GND and code option select PLL mode when
high oscillator is not used.
OSCI
8
7
Crystal mode: crystal output
RC mode: instruction clock output
PLL mode: instruction clock output
OSCO
O
Test
Xin
9
I
I
Test signal import pin (must be connected to VDD)
Crystal mode: input pin for sub-oscillator. Connect to a 32.768kHz crystal.
RC mode: pull-high resistor
10
11
12
Xout
O
I
In crystal mode: connect to a 32.768kHz crystal.
Input pin with Schmitt Trigger. If this pin remains at logic low, the controller
will also remain in rest condition.
/RESET
VDD
VSS
5
6
I
I
Power supply pin
System ground pin
Product Specification (V0.9) 09.12.2006
(This specification is subject to change without further notice)
• 7
ELAN [ ELAN MICROELECTRONICS CORP ]
