MCP98243 Microchip Technology Inc., MCP98243 Datasheet - Page 42

• Manufacturer Part Number: MCP98243
• Description: Memory Module Temperature Sensor W/ Eeprom For Spd
• Manufacturer: Microchip Technology Inc.

MCP98243
5.3.4.3
Sequential reads are initiated in the same way as a
random read, with the exception that after the
MCP98243 transmits the first data byte, the master
issues an acknowledge, as opposed to a stop condition
in a random read. This directs the MCP98243 to
transmit the next sequentially addressed 8-bit word
(Figure
FIGURE 5-21:
5.3.5
The design will incorporate a low power standby mode
(I
termination of any operation and after all internal
functions are complete. This would include any error
conditions occurring, such as improper number of clock
cycles or improper instruction byte as defined
previously.
DS22153A-page 42
SHDN
). Standby mode will be entered after a normal
5-21).
SDA
SCL
STANDBY MODE
Sequential Read
Note 1: ‘n’ is the initial address location and ‘m’ is the final address location (‘n+m’ < 256)
X
1
S
2
X
1
1
Timing Diagram for Sequential Read (See Section 4.0 “Serial Communication”).
3
X
Data at (n+1)
2
0
4
X
Address Byte
1
3
X
5
4
0
X
6
5
A
2
X
7
MCP98243
A
6
1
X
8
A
7
0
A
C
K
MCP98243
R
8
1
X
A
C
K
2
X
Data at (n+2)
1
X
3
X
2
X
4
X
3
X
Data (n)
5
X
4
X
6
X
To provide sequential reads, the MCP98243 contains
an internal address pointer, which is incremented by
one at the completion of each operation. This address
pointer allows the entire memory contents to be serially
read during one operation.
5
X
7
X
1
MCP98243
6
X
X
8
7
X
A
C
K
MCP98243
8
X
X
A
C
K
X
Data at (n+m)
X
© 2009 Microchip Technology Inc.
X
(1)
X
X
Master
N
A
K
P