ATAM862P-TNSY4D Atmel, ATAM862P-TNSY4D Datasheet - Page 99

• Manufacturer Part Number: ATAM862P-TNSY4D
• Description: IC MCU FLASH 4K TX 433MHZ 24SSOP
• Manufacturer: Atmel

Specifications of ATAM862P-TNSY4D

• Applications: UHF ASK/FSK
• Core Processor: MARC4
• Program Memory Type: FLASH (4 kB)
• Controller Series: MARC4 4-Bit
• Ram Size: 256 x 4
• Interface: SSI
• Number Of I /o: 11
• Voltage - Supply: 1.8 V ~ 4 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-SSOP
• Processor Series: ATAM862x
• Core: MARC4
• Data Bus Width: 4 bit
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

24.7.9
24.7.10
24.7.11
24.7.12
24.8
4551G–4BMCU–07/07
Initialization the Serial Interface to the EEPROM
Read One Data Byte
Read Two Data Bytes
Read n Data Bytes
Read Control Bytes
A -> acknowledge, N -> no acknowledge; HB: high byte; LB: low byte, R: row address
To prevent unexpected behavior of he EEPROM and its interface it is good practice to use an
initialization sequence after any reset of the circuit. This is performed by writing:
to the serial interface. If the EEPROM acknowledges this sequence it is in a defined state.
Maybe it is necessary to perform this sequence twice.
Start
Read low byte first,
address increment
Byte order
Read high byte first,
address decrement
Byte order
Start
Start
Start
Control byte
"FFh"
Control byte
Control byte
HB(R)
LB(R)
A Stop
A
A
A
Data byte 1
HB(R)
LB(R)
Data byte 1
Data byte 1
A4
A4
MSB
MSB
LB(R+1)
HB(R-1)
A3
A3
A
Row address
Row address
N
A
Data byte 2
Data byte 2
Stop
A2
A2
HB(R+1)
LB(R-1)
A1
A1
A
A0
A0
N
–
–
–
Stop
Data byte n
C1
C1
0
1
LB(R+n)
HB(R-n)
C0
C0
ATAM862-4
1
0
HB(R+n)
LB(R-n)
N Stop
R/NW
R/NW
LSB
LSB
1
1
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