ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 14
ATMEGA128RFA1-ZU
Manufacturer Part Number
ATMEGA128RFA1-ZU
Description
IC AVR MCU 2.4GHZ XCEIVER 64QFN
Manufacturer
Atmel
Series
ATMEGAr
Datasheets
1.ATMEGA128-16AU.pdf
(385 pages)
2.ATAVR128RFA1-EK1.pdf
(13 pages)
3.ATAVR128RFA1-EK1.pdf
(555 pages)
4.ATMEGA128RFA1-ZU.pdf
(524 pages)
Specifications of ATMEGA128RFA1-ZU
Frequency
2.4GHz
Data Rate - Maximum
2Mbps
Modulation Or Protocol
802.15.4 Zigbee
Applications
General Purpose
Power - Output
3.5dBm
Sensitivity
-100dBm
Voltage - Supply
1.8 V ~ 3.6 V
Current - Receiving
12.5mA
Current - Transmitting
14.5mA
Data Interface
PCB, Surface Mount
Memory Size
128kB Flash, 4kB EEPROM, 16kB RAM
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
64-VFQFN, Exposed Pad
Rf Ic Case Style
QFN
No. Of Pins
64
Supply Voltage Range
1.8V To 3.6V
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Processor Series
ATMEGA128x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
16 KB
Interface Type
JTAG
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
38
Number Of Timers
6
Operating Supply Voltage
1.8 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVR128RFA1-EK1
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA128RFA1-ZU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATMEGA128RFA1-ZUR
Manufacturer:
ON
Quantity:
56 000
- ATMEGA128-16AU PDF datasheet
- ATAVR128RFA1-EK1 PDF datasheet #2
- ATAVR128RFA1-EK1 PDF datasheet #3
- ATMEGA128RFA1-ZU PDF datasheet #4
- Current page: 14 of 524
- Download datasheet (5Mb)
7.6.2 SPL – Stack Pointer Low
7.6.3 RAMPZ – Extended Z-pointer Register for ELPM/SPM
14
ATmega128RFA1
The AVR Stack Pointer is implemented as two 8-bit registers SPL and SPH in the I/O
space. The number of bits actually used is implementation dependent. Note that the
data space in some implementations of the AVR architecture is so small that only SPL
is needed. In this case, the SPH Register will not be present.
• Bit 7:0 – SP7:0 - Stack Pointer Low Byte
For ELPM/SPM instructions, the Z-pointer is a concatenation of RAMPZ, ZH, and ZL.
Note that LPM is not affected by the RAMPZ setting.
• Bit 7:2 – Res5:0 - Reserved
For compatibility with future devices, be sure to write these bits to zero.
• Bit 1:0 – RAMPZ1:0 - Extended Z-Pointer Value
These two bits represent the MSB's of the Z-Pointer.
Table 7-2 RAMPZ Register Bits
For ELPM/SPM instructions, the Z-pointer is a concatenation of RAMPZ, ZH, and ZL,
as shown in
Figure 7-3. The Z-pointer used by ELPM and SPM
The actual number of bits is implementation dependent. Unused bits in an
implementation will always read as zero. For compatibility with future devices, be sure
to write these bits to zero.
Bit
$3D ($5D)
Read/Write
Initial Value
Bit
$3B ($5B)
Read/Write
Initial Value
Register Bits
RAMPZ1:0
Figure 7-3
Res5
SP7
RW
RW
7
1
7
0
Res4
SP6
RW
RW
6
1
6
0
below. Note that LPM is not affected by the RAMPZ setting.
Res3
SP5
RW
RW
5
1
5
0
Value
0
Res2
RW
SP4
RW
4
0
4
1
Description
Default value of Z-pointer MSB's.
Res1
RW
SP3
RW
3
0
3
1
Res0
SP2
RW
RW
2
1
2
0
RAMPZ1 RAMPZ0
RW
SP1
RW
1
0
1
1
8266A-MCU Wireless-12/09
SP0
RW
RW
0
1
0
0
RAMPZ
SPL
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