PT7C4339 Datasheet, PDF (19/22 Pages) Pericom Semiconductor Corporation – Real-time Clock Module

PT7C4339/4339C
Real-time Clock Module
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(2) Simplified read
S
Slave address (7 bits)
Read ^A
bit
7
bit
6
bit
5
bit
4
bit
3
bit
2
bit
1
bit
0
11 0 1 00 0 1
A ^{bit bit bit bit bit bit bit bit} /A P
76543210
Start _{Slave address + read specification}
A
C
Data read (1)
K ^{Data is read from the address pointed}
by the internal address register and
address auto increment.
A
C
K
Data read (2)
Address register auto increment to set
N Stop
O
the address for the next data to be
A
read.
C
K
Note:
1. The above steps are an example of transfers of one or two bytes only. There is no limit to the number of bytes transferred
during actual communications.
2. 49H, 4AH are used as test mode address. Customer should not use the addresses.
2015-08-0008
PT0508-1 08/24/15
19