W51300 Просмотр технического описания (PDF) - Winbond

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W51300

FLASH VR CONTROLLER

Winbond 

W51300

BLOCK DIAGRAM

MIC

MICREF

AGC

Amp

AGC

Anti-alias/

Smoothing

Filter

ADM

Modulator

Power

Amp

AUD

Amp

SMODE

CPU

Logic/Timing Controller

MCU Interface

Flash EEPROM

Interface

EXTCLK

VCCD

VCCA

OSC

STOP

BWD

L_REC L_PLAY

LED

TEST

VSSD

VSSA

ERASE

FWD

RESET

E_PLAY

BUSY

SPK+

SPK-

AUD

CLK

DATA

ADDR

MODE

CTRL

EOP

FUNCTIONAL DESCRIPTION

1. Single/Multi-segment Operation

The W51300 is typically used for either single or multi-segment operations. Single or multi-segment

operating mode is selected by pin option.

Single Segment

The SMODE pin should be connected to VCC. In this mode, only one voice segment can be recorded.

The storage duration can be extended by cascading serial flash EPROMs; up to 16 Mbits of memory

can be cascaded.

Multi-segment

The SMODE pin should be connected to VSS or left floating. In this mode, a maximum of 63 voice

segments can be recorded into flash EPROMs; up to 16 Mbits of memory can be cascaded.

Messages can easily be accessed by using the FWD, BWD, and PLAY pins.

2. Selective Record

When the system is operated in multi-segment mode, voice segments can be recorded selectively.

Users can insert a voice segment between any two existing voice segments. For instance, suppose

there are already five voice segments, 1, 2, 3, 4, and 5, and the CAP (current address/message

pointer) is at 3. Then a newly recorded voice segment will be assigned the number 4, and the original

segments 4 and 5 will be changed to 5 and 6, respectively. If the maximum number of voice

segments (63) or the end of memory space has been reached, a press of L_REC will be invalid and

the LED will flash at 3 Hz for 2 seconds to indicate the invalid action.

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