isd5100 Winbond Electronics Corp America, isd5100 Datasheet - Page 13

• Manufacturer Part Number: isd5100
• Description: Single-chip 1 To 16 Minutes Duration Voice Record/playback Devices With Digital Storage Capability
• Manufacturer: Winbond Electronics Corp America

ISD5100 Series I
There are many control functions used to operate the ISD5100-Series. Among them are:
The Read Status command is a read request from the Host processor to the ISD5100 Series
without delivering a Command Byte. The Host supplies all the clocks (SCL). In each case, the
entity sending the data drives the data line (SDA). The Read Status Command is executed by the
following I
1. Host executes I
2. Send Slave Address with R/W bit = “1” (Read) 81h
3. Slave (ISD5100-Series) responds back to Host an Acknowledge (ACK) followed by 8-bit
4. Host sends an Acknowledge (ACK) to Slave
5. Wait for SCL to go HIGH
6. Slave responds with Upper Address byte of internal address register
7. Host sends an ACK to Slave
8. Wait for SCL to go HIGH
9. Slave responds with Lower Address byte of internal address register (A[4:0] will always return
10. Host sends a NO ACK to Slave, then executes I
Status word
set to 0.)
7.3.1.1. Read Status Command:
2
C sequence.
2
C Operation Definitions
2
C START
A1
0
0
1
1
0
0
1
1
A0
0
1
0
1
0
1
0
1
<100 0000>
<100 0001>
<100 0010>
<100 0011>
<100 0000>
<100 0001>
<100 0010>
<100 0011>
Address
Slave
Pinout Table
- 13 -
R/W Bit
2
C STOP
0
0
0
0
1
1
1
1
Publication Release Date: May 16, 2007
HEX Value
80
82
84
86
81
83
85
87
ISD5100 SERIES
Revision 1.4