SPC41A Sunplus Technology Co., Ltd., SPC41A Datasheet - Page 4

• Manufacturer Part Number: SPC41A
• Description: 40KB SOUND CONTROLLER
• Manufacturer: Sunplus Technology Co., Ltd.

5. SIGNAL DESCRIPTIONS**
* OPT is the selection pin for ROSC or X’TAL using the bonding option. The shape looks like the figure at the right. When
** Refer to SPC Programming Guide for complete information.
*
© Sunplus Technology Co., Ltd.
Proprietary & Confidential
**
ROSC is selected, OPT is connected to VDD. If X’TAL is selected, OPT is floating. The reason OPT is near VDD is that
when ROSC is selected, it is easy to make the connection between VDD and OPT.
Note: 1.) Two input states can be specified; Pure Input, Pull-High or Pull Low.
Mnemonic
VDD
VSS
XI
XO
OPT*
TEST
RESET
AUD1
AUD2
IOA0
IOA1
IOA2
IOA3
IOC0
IOC1
IOC2
IOC3
IOD0
IOD1
IOD2
IOD3
IOD4
IOD5
IOD6
IOD7
2.) Three output states can be specified as Buffer output, Open Drain PMOS output (send), or Open Drain NMOS
output <sink>.
PIN No.
5, 11
12
15
14
13
18
16
17
10
26
25
24
23
22
21
20
19
6
4
3
2
1
9
8
7
Type
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/O
I/O
I/O
I/O
O
O
I
I
I
I
I
I
POWER VDD
POWER VSS
CRYSTAL OSC IN or RESISTOR
CRYSTAL OSC OUT
Rosc OPTION connect to VDD
TEST MODE
RESET
AUDIO OUTPUT
Port A is a 4-bit bi-directional programmable Input / Output port with Pull-high or
Open-drain option. As inputs, Port A can be in either the Pure or Pull-high states.
As outputs, Port A can be either Buffer or Open-drain NMOS types (Sink current).
***See note 1 and 2 below.
Port C is a 4-bit bi-directional Input / Output port with Pull-high or Open-drain option.
As inputs, Port C can be in either the Pure or Pull-high states. As outputs Port C
can be a Buffer type or Open-drain NMOS type (sink current).
IOC1: EXT INT IN
IOC2: EXT COUNT IN
***See note 1 and 2 below.
Port D is an 8-bit bi-directional programmable Input/Output port with Pull-low or
Open-drain option. As inputs, Port D can be either Pure or Pull-low states. As
outputs, Port D can be either Buffer or Open-drain PMOS type (send current).
(Key change, Wake up I/O)
***See note 1 and 2 below.
4
Description
VDD
SPC41A
SEP. 04, 2001
Version: 1.8
OPT