EASY SOUND - EM55000SERIES
TINYCONTROLLER-BASEDSYNTHESIZER
PIN DESCRIPTIONS
Symbol
I/O
Function
P1.0
P1.1
P1.2
P1.3
P2.0
P2.1
P2.2
P2.3
P3.0
P3.1
P3.2
P3.3
P4.0
P4.1
P4.2
P4.3
VDD
OSCI
RESET
OSCO
TEST
VSSD
VCC
VSSC
VO
I
I
I
Bit 0 of Port 1. (not for EM55001, EM55002)
Bit 1 of Port 1. (not for EM55001, EM55002)
Bit 2 of Port 1. (not for EM55001, EM55002)
Bit 3 of Port 1. (not for EM55001, EM55002)
Bit 0 of Port 2.
Bit 1 of Port 2.
Bit 2 of Port 2. (not for EM55001)
Bit 3 of Port 2. (not for EM55001)
Bit 0 of Port 3. (not for EM55001)
I
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
I
I
O
I
I
I
I
O
Bit 1 of Port 3. (not for EM55001)
Bit 2 of Port 3. The pin can generate 38KHz square wave.
Bit 3 of Port 3. The pin can be treated as an LED output flashing with volume.
Bit 0 of Port 4. (not for EM55001 ~ EM55400)
Bit 1 of Port 4. (not for EM55001 ~ EM55400)
Bit 2 of Port 4. (not for EM55001 ~ EM55400)
Bit 3 of Port 4. (not for EM55001 ~ EM55400)
Positive digital power supply.
Ring oscillator/crystal input pin.
Reset Pin. (not for EM55001, EM55002, EM55100)
Crystal output pin. (not for EM55001, EM55002, EM55100)
For testing only. (not for EM55001, EM55002)
Negative digital power supply.
Positive analog power supply. (not for EM55001)
Negative analog power supply. (not for EM55001)
Constant current output / Push Pull voice output.
Push Pull voice output. (not for EM55001)
VO1
O
* This specification are subject to be changed without notice.
1.23.2002
2
ELAN [ ELAN MICROELECTRONICS CORP ]
