80-0211-C Datasheet, PDF (3/12 Pages) List of Unclassifed Manufacturers – Speech And Music Processor

Data Sheet
Pin/Pad Assignments
SC-691
36
1
35
34
SC-691
(top view of the die)
16
17
VDD
1
VDD
2
R/W_
3
STROBE_
4
OUTRDY_
5
INRDY_
6
TEST
7
SCANOUT
8
SYNC
9
SCANCLK
10
SCANIN
11
RESET_
12
PLL
13
OSCIN
14
OSCOUT
15
VSS
16
SC-691
(64-lead LQFP)
48
VSS
47
DACP
46
VDD
45
DACM
44
VDD
43
PD4
42
PD5
41
PD6
40
PD7
39
DATA0
38
DATA1
37
DATA2
36
DATA3
35
DATA4
34
DATA5
33
DATA6
NAME
PIN NO. PAD NO. I/O DESCRIPTION
DATA0–DATA3
39 → 36 25 → 22 I/O Data bits 0 through 3 (in 4-bit or 8-bit mode)
DATA4 or
DATA/COMMAND
35
21
I/O
Data bit 4 (in 8-bit mode)
NOTE: Pin 8 is DATA4 in 8-bit mode, or DATA/COMMAND in 4-bit mode.
DATA5–DATA7
34 → 32 20 → 18 I/O Data bits 5 through 7 (8-bit mode only)
INRDY_
An output signal from the slave to the microcontroller. A low signal indicates that
6
6
O the SC-691 is ready to accept data or command. A high signal indicates that the
SC-691 is busy and the microcontroller must not write any data or command to it
OUTRDY_
5
5
O
An output signal from the slave to the microcontroller. A low signal indicates that
the SC-691 is ready to send data or command to the microcontroller.
PD4–PD7
43 → 40 29 → 26 I/O General-purpose I/O bus
R/W_
3
3
I
An input signal to the slave from the microcontroller. Read/write select signal which
is set high for read operations or set low for write operations by the microcontroller.
STROBE_
An input signal to the slave from the microcontroller. STROBE_ sequences read or
4
4
I write operations in conjunction with the R/W_ signal. This signal is pulsed high-low-
high for read or write operations sequencing.
Reference Oscillator Signals
OSCOUT
15
15
O Output of resistor/crystal oscillator
OSCIN
14
14
I Input to resistor/crystal oscillator
PLL
13
13
O Output of phase-lock-loop filter
Scan Port Control Signals
SCANIN^†
11
11
I Scan port data input
SCANOUT
8
8
O Scan port data output
SCANCLK
SYNC^†
TEST^†
10
10
I Scan port clock
9
9
I Scan port synchronization
7
7
I Test modes
Digital-to-Analog Sound Output
DACP
47
33
O Digital-to-analog plus output (+)
DACM
45
31
O Digital-to-analog minus output(–)
Initialization
RESET_
12
12
I Device initialization
Power Signals
V_DD
1, 2, 31, 1, 2, 17,
44, 46^‡ 30, 32^‡
- Processor power, 5 V nominal supply voltage
V_SS
16, 48,
49^‡, 64
16, 34^‡,
35, 36
- Ground pin
† All pins must be N.C.
‡ Marked pins are V_DD and V_SS connections which service the DAC circuitry. These pins tend to sustain a higher current draw. A dedicated
decoupling capacitor across these pins is therefore required.
© 2003 Sensory Inc.
P/N 80-0211-C
3