ATAM862P-TNSY4D Atmel, ATAM862P-TNSY4D Datasheet - Page 17
![IC MCU FLASH 4K TX 433MHZ 24SSOP](/photos/6/76/67636/453-24-ssop_sml.jpg)
ATAM862P-TNSY4D
Manufacturer Part Number
ATAM862P-TNSY4D
Description
IC MCU FLASH 4K TX 433MHZ 24SSOP
Manufacturer
Atmel
Datasheet
1.ATAM862P-TNQY4D.pdf
(110 pages)
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
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16.3
16.3.1
4551G–4BMCU–07/07
Registers
Program Counter (PC)
Figure 16-2. RAM Map
The microcontroller has seven programmable registers and one condition code register (see
Figure
The program counter is a 12-bit register which contains the address of the next instruction to be
fetched from the EEPROM. Instructions currently being executed are decoded in the instruction
decoder to determine the internal micro-operations. For linear code (no calls or branches), the
program counter is incremented with every instruction cycle. If a branch-, call-, return-instruction
or an interrupt is executed, the program counter is loaded with a new address. The program
counter is also used with the table instruction to fetch 8-bit wide EEPROM constants.
Figure 16-3. Programming Mode l
16-3).
SP
RP
X
Y
PC
FCh
04h
00h
11
Autosleep
X
Y
RP
SP
TOS-1
(256 x 4-bit)
RAM
7
7
7
7
TOS
CCR
FFh
07h
03h
C
3
3
Expression
stack
Return
stack
--
B
Global
variables
Global
v
variables
0
I
0
0
0
0
0
0
0
0
Interrupt enable
Branch
Reserved
Carry / borrow
Program counter
Return stack pointer
Expression stack pointer
RAM address register (X)
RAM address register (Y)
Top of stack register
Condition code register
Expression stack
11
Return stack
3
TOS-1
TOS-2
4-bit
TOS
12-bit
0
ATAM862-4
SP
0
RP
17
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