ATMEL ATMEGA325P-20AU

Features
• High Performance, Low Power AVR® 8-bit Microcontroller
• Advanced RISC Architecture
•
•
•
•
•
•
•
•
•
•
– 131 Powerful Instructions - Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
– Up to 4 MIPS Throughput at 4 MHz
High Endurance Non-volatile Memorie segments
– 8K/16K Bytes of In-System Self-Programmable Flash Program
Memory(ATmega8HVA/16HVA)
– 256 Bytes EEPROM
– 512 Bytes Internal SRAM
– Write/Erase cycles: 10,000 Flash/100,000 EEPROM
– Data Retention: 20 years at 85°C /100 years at 25°C(1)
– Programming Lock for Software Security
Battery Management Features
– One or Two Cells in Series
– Over-current Protection (Charge and Discharge)
– Short-circuit Protection (Discharge)
– High Voltage Outputs to Drive N-Channel Charge/Discharge FETs
Peripheral Features
– Two configurable 8- or 16-bit Timers with Separate Prescaler, Optional Input
Capture (IC), Compare Mode and CTC
– SPI - Serial Programmable Interface
– 12-bit Voltage ADC, Four External and One Internal ADC Inputs
– High Resolution Coulomb Counter ADC for Current Measurements
– Programmable Watchdog Timer
Special Microcontroller Features
– debugWIRE On-chip Debug System
– In-System Programmable via SPI ports
– Power-on Reset
– On-chip Voltage Regulator with Short-circuit Monitoring Interface
– External and Internal Interrupt Sources
– Sleep Modes:
Idle, ADC Noise Reduction, Power-save, and Power-off
Additional Secure Authentication Features available only under NDA
Packages
– 36-pad LGA
– 28-lead TSOP
Operating Voltage: 1.8 - 9V
Maximum Withstand Voltage (High-voltage pins): 28V
Temperature Range: - 20°C to 85°C
Speed Grade: 1-4 MHz
8-bit
Microcontroller
with 8K/16K
Bytes In-System
Programmable
Flash
ATmega8HVA
ATmega16HVA
Preliminary
Summary
8024AS–AVR–04/08
1. Pin Configurations
1.1
LGA
Figure 1-1.
LGA - Pinout ATmega8HVA/16HVA
1
2
3
4
5
6
7
8
A
B
C
D
E
Figure 1-2.
2
LGA - pinout ATmega8HVA/16HVA
1
2
3
4
5
6
7
8
A
DNC
PV2
PV1
NV
GND
OC
OD
DNC
B
CF2P
CF2N
VFET
CF1P
GND
PC0
DNC
GND
C
VREF
VREFGND
VREG
CF1N
VCC
GND
GND
BATT
D
PI
NI
GND
GND
GND
PB2
PB3
GND
E
DNC
DNC
PA1
PA0
PB1
PB0
RESET
DNC
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
1.2
TSOP
Figure 1-3.
1.3
1.3.1
TSOP - pinout ATmega8HVA/16HVA
PV2
1
28
OD
PV1
2
27
OC
NV
3
26
GND
GND
4
25
BATT
VFET
5
24
PC0 (RXD/TXD/INT0)
CF1P
6
23
VCC
CF1N
7
22
GND
CF2P
8
21
PB3 (MISO/INT2)
CF2N
9
20
PB2 (MOSI/INT1)
VREG
10
19
PB1 (SCK)
VREF
11
18
PB0 (SS/CKOUT)
VREFGND
12
17
PA2 (RESET/dW)
PI
13
16
PA1 (ADC1/SGND/T1)
NI
14
15
PA0 (ADC0/SGND/T0)
Pin Descriptions
VFET
Input to the internal voltage regulator.
1.3.2
VCC
Digital supply voltage. Normally connected to VREG.
1.3.3
VREG
Output from the internal voltage regulator.
1.3.4
CF1P/CF1N/CF2P/CF2N
CF1P/CF1N/CF2P/CF2N are the connection pins for connecting external fly capacitors to the
step-up regulator.
1.3.5
VREF
Internal Voltage Reference for external decoupling.
1.3.6
VREFGND
Ground for decoupling of Internal Voltage Reference. Do not connect to GND or SGND on PCB.
3
8024AS–AVR–04/08
1.3.7
GND
Ground
1.3.8
Port A (PA1..PA0)
Port A serves as a low-voltage 2-bit bi-directional I/O port with internal pull-up resistors (selected
for each bit). As inputs, Port A pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port A pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port A also serves the functions of various special features of the ATmega8HVA/16HVA as
listed in ”Alternate Functions of Port A” on page 70.
1.3.9
Port B (PB3..PB0)
Port B is a low-voltage 4-bit bi-directional I/O port with internal pull-up resistors (selected for
each bit). As inputs, Port B pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port B pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port B also serves the functions of various special features of the ATmega8HVA/16HVA as
listed in ”Alternate Functions of Port B” on page 71.
1.3.10
PC0
Port C serves the functions of various special features of the ATmega8HVA/16HVA as listed in
”Alternate Functions of Port C” on page 61.
1.3.11
OC
High voltage output to drive Charge FET.
1.3.12
OD
High voltage output to drive Discharge FET.
1.3.13
NI
NI is the filtered negative input from the current sense resistor.
1.3.14
PI
PI is the filtered positive input from the current sense resistor.
1.3.15
NV/PV1/PV2
NV, PV1, and PV2 are the inputs for battery cells 1 and 2.
1.3.16
BATT
Input for detecting when a charger is connected.
1.3.17
RESET/dw
Reset input. A low level on this pin for longer than the minimum pulse length will generate a
reset, even if the clock is not running. The minimum pulse length is given in Table 11 on page
38. Shorter pulses are not guaranteed to generate a reset. This pin is also used as debugWIRE
communication pin.
4
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
2. Overview
The ATmega8HVA/16HVA is a monitoring and protection circuit for 1-cell and 2-cell Li-ion applications with focus on high security/authentication, accurate monitoring, low cost and high
utilization of the cell energy. The device contains secure authentication features as well as
autonomous battery protection during charging and discharging. The chip allows very accurate
accumulated current measurements using an 18-bit ADC with a resolution of 0.84 µV. The feature set makes the ATmega8HVA/16HVA a key component in any system focusing on high
security, battery protection, accurate monitoring, high system utilization and low cost.
Figure 2-1.
Block Diagram
PB3..0
PC0
PB0
Oscillator
Circuits /
Clock
Generation
Oscillator
Sampling
Interface
Watchdog
Oscillator
VCC
PORTB (4)
SPI
Flash
Power
Supervision
POR &
RESET
8/16-bit T/C0
Battery
Protection
8/16-bit T/C1
Voltage
ADC
SRAM
VPTAT
EEPROM
CPU
GND
Charger
Detect
VFET
VREG
PV2
PV1
NV
debugWIRE
Security
Module
BATT
OC
OD
FET
Control
Program
Logic
Watchdog
Timer
RESET/dW
PORTC (1)
Voltage
Reference
Coulumb
Counter ADC
VREF
VREFGND
PI
NI
DATA BUS
Voltage Regulator
Monitor Interface
Voltage
Regulator
PORTA (2)
PA1..0
CF1N
CF2N
CF1P
PA1..0
CF2P
A combined step-up and linear voltage regulator ensures that the chip can operate with supply
voltages as low as 1.8V for 1-cell applications. The regulator automatically switches to linear
mode when the input voltage is sufficiently high, thereby ensuring a minimum power consumption at all times. For 2-cell applications, only linear regulation is enabled. The regulator
capabilities, combined with an extremely low power consumption in the power saving modes,
greatly enhances the cell energy utilization compared to existing solutions.
The chip utilizes Atmel's patented Deep Under-voltage Recovery (DUVR) mode that supports
pre-charging of deeply discharged battery cells without using a separate Pre-charge FET.
5
8024AS–AVR–04/08
The ATmega8HVA/16HVA contains a 12-bit ADC that can be used to measure the voltage of
each cell individually. The ADC can also be used to monitor temperature, either on-chip temperature using the built-in temperature sensor, external temperature using thermistors connected to
dedicated ADC inputs. The ATmega8HVA/16HVA contains a high-voltage tolerant, open-drain
IO pin that supports serial communication. Programming can be done in-system using the 4
General Purpose IO ports that support SPI programming.
The AVR core combines a rich instruction set with 32 general purpose working registers. All the
32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent
registers to be accessed in one single instruction executed in one clock cycle. The resulting
architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
The MCU includes 8K/16K bytes of In-System Programmable Flash with Read-While-Write
capabilities, 256 bytes EEPROM, 512 bytes SRAM, 32 general purpose working registers, 6
general purpose I/O lines, debugWIRE for On-chip debugging and SPI for In-system Programming, two flexible Timer/Counters with Input Capture and compare modes, internal and external
interrupts, a 12-bit Sigma Delta ADC for voltage and temperature measurements, a high resolution Sigma Delta ADC for Coulomb Counting and instantaneous current measurements,
Additional Secure Authentication Features, an authonomous Battery Protection module, a programmable Watchdog Timer with wake-up capabilities, and software selectable power saving
modes.
The AVR core combines a rich instruction set with 32 general purpose working registers. All the
32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two indepdent
registers to be accessed in one single instruction executed in one clock cycle. The resulting
architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
The device is manufactured using Atmel’s high voltage high density non-volatile memory technology. The On-chip ISP Flash allows the program memory to be reprogrammed In-System,
through an SPI serial interface, by a conventional non-volatile memory programmer or by an Onchip Boot program running on the AVR core. By combining an 8-bit RISC CPU with In-System
Self-Programmable Flash, fuel gauging ADCs, dedicated battery protection circuitry, and a voltage regulator on a monolithic chip, the ATmega8HVA/16HVA is a powerful microcontroller that
provides a highly flexible and cost effective solution for Li-ion Smart Battery applications.
The ATmega8HVA/16HVA AVR is supported with a full suite of program and system development tools including: C Compilers, Macro Assemblers, Program Debugger/Simulators, and Onchip Debugger.
The ATmega8HVA/16HVA is a low-power CMOS 8-bit microcontroller based on the AVR architecture. It is part of the AVR Smart Battery family that provides secure authentication, highly
accurate monitoring and autonomous protection for Lithium-ion battery cells.
6
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
2.1
Comparison Between ATmega8HVA and ATmega16HVA
The ATmega8HVA and ATmega16HVA differ only in memory size and interrupt vector size.
Table 2-1 summarizes the different configuration for the two devices.
Table 2-1.
Configuration summary
Device
Flash
Interrupt vector size
ATmega8HVA
8K
1 Word
ATmega16HVA
16K
2 Word
3. Disclaimer
All Min, Typ and Max values contained in this datasheet are preliminary estimates based on simulations and characterization of other AVR microcontrollers manufactured on the same process
technology. Final values will be available after the device is characterized.
4. Resources
A comprehensive set of development tools, application notes and datasheets are available for
download on http://www.atmel.com/avr.
Note:
1.
5. Data Retention
Reliability Qualification results show that the projected data retention failure rate is much less
than 1 PPM over 20 years at 85°C or 100 years at 25°C.
7
8024AS–AVR–04/08
6. Register Summary
8
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0xFF)
Reserved
–
–
–
–
–
–
–
–
(0xFE)
BPPLR
–
–
–
–
–
–
BPPLE
BPPL
127
(0xFD)
BPCR
–
–
–
SCD
DOCD
COCD
DHCD
CHCD
127
(0xFC)
BPHCTR
–
–
HCPT[5:0]
130
(0xFB)
BPOCTR
–
–
OCPT[5:0]
129
(0xFA)
BPSCTR
–
(0xF9)
BPCHCD
SCPT[6:0]
Page
128
CHCDL[7:0]
132
(0xF8)
BPDHCD
DHCDL[7:0]
132
(0xF7)
BPCOCD
COCDL[7:0]
131
(0xF6)
BPDOCD
DOCDL[7:0]
131
(0xF5)
BPSCD
SCDL[7:0]
(0xF4)
Reserved
–
–
–
–
131
–
–
–
–
(0xF3)
BPIFR
–
–
–
SCIF
DOCIF
COCIF
DHCIF
CHCIF
134
(0xF2)
BPIMSK
–
–
–
SCIE
DOCIE
COCIE
DHCIE
CHCIE
133
(0xF1)
Reserved
–
–
–
–
–
–
–
–
(0xF0)
FCSR
–
–
–
–
DUVRD
CPS
DFE
CFE
(0xEF)
Reserved
–
–
–
–
–
–
–
–
(0xEE)
Reserved
–
–
–
–
–
–
–
–
(0xED)
Reserved
–
–
–
–
–
–
–
–
(0xEC)
Reserved
–
–
–
–
–
–
–
–
(0xEB)
Reserved
–
–
–
–
–
–
–
–
(0xEA)
Reserved
–
–
–
–
–
–
–
–
(0xE9)
CADICH
CADIC[15:8]
(0xE8)
CADICL
CADIC[7:0]
(0xE7)
Reserved
–
–
–
–
CADICIE
138
110
110
–
–
–
–
–
CADACIF
CADRCIF
CADICIF
(0xE6)
CADRC
(0xE5)
CADCSRB
–
CADACIE
–
CADRC[7:0]
111
(0xE4)
CADCSRA
CADEN
CADPOL
CADUB
(0xE3)
CADAC3
CADAC[31:24]
(0xE2)
CADAC2
CADAC[23:16]
110
(0xE1)
CADAC1
CADAC[15:8]
110
CADAS[1:0]
CADSI[1:0]
CADSE
109
107
110
(0xE0)
CADAC0
(0xDF)
Reserved
–
–
–
–
CADAC[7:0]
–
–
–
–
110
(0xDE)
Reserved
–
–
–
–
–
–
–
–
(0xDD)
Reserved
–
–
–
–
–
–
–
–
(0xDC)
Reserved
–
–
–
–
–
–
–
–
(0xDB)
Reserved
–
–
–
–
–
–
–
–
(0xDA)
Reserved
–
–
–
–
–
–
–
–
(0xD9)
Reserved
–
–
–
–
–
–
–
–
(0xD8)
Reserved
–
–
–
–
–
–
–
–
(0xD7)
Reserved
–
–
–
–
–
–
–
–
(0xD6)
Reserved
–
–
–
–
–
–
–
–
(0xD5)
Reserved
–
–
–
–
–
–
–
–
(0xD4)
Reserved
–
–
–
–
–
–
–
–
(0xD3)
Reserved
–
–
–
–
–
–
–
–
(0xD2)
Reserved
–
–
–
–
–
–
–
–
(0xD1)
BGCRR
(0xD0)
BGCCR
BGD
–
(0xCF)
Reserved
–
–
–
–
–
–
–
–
BGCR[7:0]
119
BGCC[5:0]
118
(0xCE)
Reserved
–
–
–
–
–
–
–
–
(0xCD)
Reserved
–
–
–
–
–
–
–
–
(0xCC)
Reserved
–
–
–
–
–
–
–
–
(0xCB)
Reserved
–
–
–
–
–
–
–
–
(0xCA)
Reserved
–
–
–
–
–
–
–
–
(0xC9)
Reserved
–
–
–
–
–
–
–
–
(0xC8)
ROCR
ROCS
–
–
–
–
–
ROCWIF
ROCWIE
(0xC7)
Reserved
–
–
–
–
–
–
–
–
(0xC6)
Reserved
–
–
–
–
–
–
–
–
(0xC5)
Reserved
–
–
–
–
–
–
–
–
(0xC4)
Reserved
–
–
–
–
–
–
–
–
(0xC3)
Reserved
(0xC2)
Reserved
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
(0xC1)
Reserved
–
–
–
–
–
–
–
–
(0xC0)
Reserved
–
–
–
–
–
–
–
–
123
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0xBF)
Reserved
–
–
–
–
–
–
–
–
Page
(0xBE)
Reserved
–
–
–
–
–
–
–
–
(0xBD)
Reserved
–
–
–
–
–
–
–
–
(0xBC)
Reserved
–
–
–
–
–
–
–
–
(0xBB)
Reserved
–
–
–
–
–
–
–
–
(0xBA)
Reserved
–
–
–
–
–
–
–
–
(0xB9)
Reserved
–
–
–
–
–
–
–
–
(0xB8)
Reserved
–
–
–
–
–
–
–
–
(0xB7)
Reserved
–
–
–
–
–
–
–
(0xB6)
Reserved
–
–
–
–
–
–
–
–
(0xB5)
Reserved
–
–
–
–
–
–
–
–
(0xB4)
Reserved
–
–
–
–
–
–
–
–
(0xB3)
Reserved
–
–
–
–
–
–
–
–
(0xB2)
Reserved
–
–
–
–
–
–
–
–
(0xB1)
Reserved
–
–
–
–
–
–
–
–
(0xB0)
Reserved
–
–
–
–
–
–
–
–
(0xAF)
Reserved
–
–
–
–
–
–
–
–
(0xAE)
Reserved
–
–
–
–
–
–
–
–
(0xAD)
Reserved
–
–
–
–
–
–
–
–
(0xAC)
Reserved
–
–
–
–
–
–
–
–
(0xAB)
Reserved
–
–
–
–
–
–
–
–
(0xAA)
Reserved
–
–
–
–
–
–
–
–
(0xA9)
Reserved
–
–
–
–
–
–
–
–
(0xA8)
Reserved
–
–
–
–
–
–
–
–
(0xA7)
Reserved
–
–
–
–
–
–
–
–
(0xA6)
Reserved
–
–
–
–
–
–
–
–
(0xA5)
Reserved
–
–
–
–
–
–
–
–
(0xA4)
Reserved
–
–
–
–
–
–
–
–
(0xA3)
Reserved
–
–
–
–
–
–
–
–
(0xA2)
Reserved
–
–
–
–
–
–
–
–
(0xA1)
Reserved
–
–
–
–
–
–
–
–
(0xA0)
Reserved
–
–
–
–
–
–
–
–
(0x9F)
Reserved
–
–
–
–
–
–
–
–
(0x9E)
Reserved
–
–
–
–
–
–
–
–
(0x9D)
Reserved
–
–
–
–
–
–
–
–
(0x9C)
Reserved
–
–
–
–
–
–
–
–
(0x9B)
Reserved
–
–
–
–
–
–
–
–
(0x9A)
Reserved
–
–
–
–
–
–
–
–
(0x99)
Reserved
–
–
–
–
–
–
–
–
(0x98)
Reserved
–
–
–
–
–
–
–
–
(0x97)
Reserved
–
–
–
–
–
–
–
–
(0x96)
Reserved
–
–
–
–
–
–
–
–
(0x95)
Reserved
–
–
–
–
–
–
–
–
(0x94)
Reserved
–
–
–
–
–
–
–
–
(0x93)
Reserved
–
–
–
–
–
–
–
–
(0x92)
Reserved
–
–
–
–
–
–
–
–
(0x91)
Reserved
–
–
–
–
–
–
–
–
(0x90)
Reserved
–
–
–
–
–
–
–
–
(0x8F)
Reserved
–
–
–
–
–
–
–
–
(0x8E)
Reserved
–
–
–
–
–
–
–
–
(0x8D)
Reserved
–
–
–
–
–
–
–
–
(0x8C)
Reserved
–
–
–
–
–
–
–
–
(0x8B)
Reserved
–
–
–
–
–
–
–
–
(0x8A)
Reserved
–
–
–
–
–
–
–
–
(0x89)
OCR1B
Timer/Counter1 – Output Compare Register B
(0x88)
OCR1A
Timer/Counter1 – Output Compare Register A
(0x87)
Reserved
–
–
–
(0x86)
Reserved
–
–
–
(0x85)
TCNT1H
Timer/Counter1 (8 Bit) High Byte
(0x84)
TCNT1L
Timer/Counter1 (8 Bit) Low Byte
(0x83)
Reserved
–
–
–
–
–
(0x82)
Reserved
–
–
–
–
–
–
–
–
(0x81)
TCCR1B
–
–
–
–
–
CS12
CS11
CS10
76
(0x80)
TCCR1A
TCW1
ICEN1
ICNC1
ICES1
ICS1
–
–
WGM10
90
(0x7F)
Reserved
–
–
–
–
–
–
–
–
(0x7E)
DIDR0
–
–
–
–
–
–
PA1DID
PA0DID
92
91
–
–
–
–
–
–
–
–
–
–
91
91
–
–
–
116
9
8024AS–AVR–04/08
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(0x7D)
Reserved
–
–
–
–
–
–
–
–
(0x7C)
VADMUX
–
–
–
–
(0x7B)
Reserved
–
–
–
–
–
–
–
–
(0x7A)
VADCSR
–
–
–
–
VADEN
VADSC
VADCCIF
VADCCIE
(0x79)
VADCH
–
–
–
–
(0x78)
VADCL
(0x77)
Reserved
–
–
–
–
–
–
–
–
(0x76)
Reserved
–
–
–
–
–
–
–
–
(0x75)
Reserved
–
–
–
–
–
–
–
–
(0x74)
Reserved
–
–
–
–
–
–
–
–
(0x73)
Reserved
–
–
–
–
–
–
–
–
(0x72)
Reserved
–
–
–
–
–
–
–
–
(0x71)
Reserved
–
–
–
–
–
–
–
–
(0x70)
Reserved
–
–
–
–
–
–
–
–
(0x6F)
TIMSK1
–
–
–
–
ICIE1
OCIE1B
OCIE1A
TOIE1
92
(0x6E)
TIMSK0
–
–
–
–
ICIE0
OCIE0B
OCIE0A
TOIE0
92
(0x6D)
Reserved
–
–
–
–
–
–
–
–
(0x6C)
Reserved
–
–
–
–
–
–
–
–
(0x6B)
Reserved
–
–
–
–
–
–
–
–
(0x6A)
Reserved
–
–
–
–
–
–
–
–
(0x69)
EICRA
–
–
ISC21
ISC20
ISC11
ISC10
ISC01
ISC00
(0x68)
Reserved
–
–
–
–
–
–
–
–
(0x67)
Reserved
–
–
–
–
–
–
–
–
(0x66)
FOSCCAL
(0x65)
Reserved
–
–
–
–
–
–
–
–
VADMUX[3:0]
Page
114
VADC Data Register High byte
114
115
VADC Data Register Low byte
115
Fast Oscillator Calibration Register
56
30
(0x64)
PRR0
–
–
PRVRM
–
PRSPI
PRTIM1
PRTIM0
PRVADC
(0x63)
Reserved
–
–
–
–
–
–
–
–
(0x62)
Reserved
–
–
–
–
–
–
–
–
(0x61)
CLKPR
CLKPCE
–
–
–
–
–
CLKPS1
CLKPS0
31
(0x60)
WDTCSR
WDIF
WDIE
WDP3
WDCE
WDE
WDP2
WDP1
WDP0
49
0x3F (0x5F)
SREG
I
T
H
S
V
N
Z
C
9
0x3E (0x5E)
SPH
SP15
SP14
SP13
SP12
SP11
SP10
SP9
SP8
12
0x3D (0x5D)
SPL
SP7
SP6
SP5
SP4
SP3
SP2
SP1
SP0
12
0x3C (0x5C)
Reserved
–
–
–
–
–
–
–
–
0x3B (0x5B)
Reserved
–
–
–
–
–
–
–
–
0x3A (0x5A)
Reserved
–
–
–
–
–
–
–
–
0x39 (0x59)
Reserved
–
–
–
–
–
–
–
–
0x38 (0x58)
Reserved
–
–
–
–
–
–
–
–
0x37 (0x57)
SPMCSR
–
–
SIGRD
CTPB
RFLB
PGWRT
PGERS
SPMEN
0x36 (0x56)
Reserved
–
–
–
–
–
–
–
–
0x35 (0x55)
MCUCR
–
–
CKOE
PUD
–
–
–
–
73/31
0x34 (0x54)
MCUSR
–
–
–
OCDRF
WDRF
BODRF
EXTRF
PORF
49
0x33 (0x53)
SMCR
–
–
–
–
SE
39
0x32 (0x52)
Reserved
–
–
–
–
SM[2:0]
–
–
–
–
0x31 (0x51)
DWDR
0x30 (0x50)
Reserved
–
–
–
debugWIRE Data Register
–
–
–
–
–
–
–
–
–
–
–
–
–
39
147
140
0x2F (0x4F)
Reserved
0x2E (0x4E)
SPDR
0x2D (0x4D)
SPSR
SPIF
WCOL
–
0x2C (0x4C)
SPCR
SPIE
SPE
DORD
0x2B (0x4B)
GPIOR2
General Purpose I/O Register 2
0x2A (0x4A)
GPIOR1
General Purpose I/O Register 1
23
0x29 (0x49)
OCR0B
Timer/Counter0 Output Compare Register B
92
0x28 (0x48)
OCR0A
Timer/Counter0 Output Compare Register A
91
0x27 (0x47)
TCNT0H
Timer/Counter0 (8 Bit) High Byte
91
0x26 (0x46)
TCNT0L
Timer/Counter0 (8 Bit) Low Byte
0x25 (0x45)
TCCR0B
–
–
–
–
–
CS02
CS01
SPI Data Register
103
–
–
–
–
SPI2X
102
MSTR
CPOL
CPHA
SPR1
SPR0
101
23
91
CS00
76
90
0x24 (0x44)
TCCR0A
TCW0
ICEN0
ICNC0
ICES0
ICS0
–
–
WGM00
0x23 (0x43)
GTCCR
TSM
–
–
–
–
–
–
PSRSYNC
0x22 (0x42)
Reserved
–
–
–
–
–
–
–
–
0x21 (0x41)
EEAR
EEPROM Address Register Low Byte
19
0x20 (0x40)
EEDR
EEPROM Data Register
19
0x1F (0x3F)
EECR
0x1E (0x3E)
GPIOR0
0x1D (0x3D)
EIMSK
–
–
–
–
–
INT2
INT1
INT0
57
0x1C (0x3C)
EIFR
–
–
–
–
–
INTF2
INTF1
INTF0
57
10
–
–
EEPM1
EEPM0
EERIE
EEMPE
EEPE
EERE
General Purpose I/O Register 0
19
23
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
0x1B (0x3B)
Reserved
–
–
–
–
–
–
–
–
Page
0x1A (0x3A)
Reserved
–
–
–
–
–
–
–
–
0x19 (0x39)
Reserved
–
–
–
–
–
–
–
–
0x18 (0x38)
Reserved
–
–
–
–
–
–
–
–
0x17 (0x37)
OSICSR
–
–
–
OSISEL0
–
–
OSIST
OSIEN
32
0x16 (0x36)
TIFR1
–
–
–
–
ICF1
OCF1B
OCF1A
TOV1
93
0x15 (0x35)
TIFR0
–
–
–
–
ICF0
OCF0B
OCF0A
TOV0
93
0x14 (0x34)
Reserved
–
–
–
–
–
–
–
–
0x13 (0x33)
Reserved
–
–
–
–
–
–
–
–
0x12 (0x32)
Reserved
–
–
–
–
–
–
–
–
0x11 (0x31)
Reserved
–
–
–
–
–
–
–
–
0x10 (0x30)
Reserved
–
–
–
–
–
–
–
–
0x0F (0x2F)
Reserved
–
–
–
–
–
–
–
–
0x0E (0x2E)
Reserved
–
–
–
–
–
–
–
–
0x0D (0x2D)
Reserved
–
–
–
–
–
–
–
–
0x0C (0x2C)
Reserved
–
–
–
–
–
–
–
–
0x0B (0x2B)
Reserved
–
–
–
–
–
–
–
–
0x0A (0x2A)
Reserved
–
–
–
–
–
–
–
–
0x09 (0x29)
Reserved
–
–
–
–
–
–
–
–
0x08 (0x28)
PORTC
–
–
–
–
–
–
–
PORTC0
0x07 (0x27)
Reserved
–
–
–
–
–
–
–
–
62
0x06 (0x26)
PINC
–
–
–
–
–
–
–
PINC0
62
0x05 (0x25)
PORTB
–
–
–
–
PORTB3
PORTB2
PORTB1
PORTB0
73
0x04 (0x24)
DDRB
–
–
–
–
DDB3
DDB2
DDB1
DDB0
73
0x03 (0x23)
PINB
–
–
–
–
PINB3
PINB2
PINB1
PINB0
73
0x02 (0x22)
PORTA
–
–
–
–
–
–
PORTA1
PORTA0
73
0x01 (0x21)
DDRA
–
–
–
–
–
–
DDA1
DDA0
73
0x00 (0x20)
PINA
–
–
–
–
–
–
PINA1
PINA0
73
Notes:
1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses
should never be written.
2. I/O registers within the address range $00 - $1F are directly bit-accessible using the SBI and CBI instructions. In these registers, the value of single bits can be checked by using the SBIS and SBIC instructions.
3. Some of the status flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on
all bits in the I/O register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions
work with registers 0x00 to 0x1F only.
4. When using the I/O specific commands IN and OUT, the I/O addresses $00 - $3F must be used. When addressing I/O registers as data space using LD and ST instructions, $20 must be added to these addresses. The ATmega8HVA/16HVA is a
complex microcontroller with more peripheral units than can be supported within the 64 location reserved in Opcode for the
IN and OUT instructions. For the Extended I/O space from $60 - $FF in SRAM, only the ST/STS/STD and LD/LDS/LDD
instructions can be used.
11
8024AS–AVR–04/08
7. Instruction Set Summary
Mnemonics
Operands
Description
Operation
Flags
#Clocks
ARITHMETIC AND LOGIC INSTRUCTIONS
ADD
Rd, Rr
Add two Registers
Rd ← Rd + Rr
Z,C,N,V,H
ADC
Rd, Rr
Add with Carry two Registers
Rd ← Rd + Rr + C
Z,C,N,V,H
1
ADIW
Rdl,K
Add Immediate to Word
Rdh:Rdl ← Rdh:Rdl + K
Z,C,N,V,S
2
SUB
Rd, Rr
Subtract two Registers
Rd ← Rd - Rr
Z,C,N,V,H
1
SUBI
Rd, K
Subtract Constant from Register
Rd ← Rd - K
Z,C,N,V,H
1
SBC
Rd, Rr
Subtract with Carry two Registers
Rd ← Rd - Rr - C
Z,C,N,V,H
1
SBCI
Rd, K
Subtract with Carry Constant from Reg.
Rd ← Rd - K - C
Z,C,N,V,H
1
SBIW
Rdl,K
Subtract Immediate from Word
Rdh:Rdl ← Rdh:Rdl - K
Z,C,N,V,S
2
AND
Rd, Rr
Logical AND Registers
Rd ← Rd • Rr
Z,N,V
1
ANDI
Rd, K
Logical AND Register and Constant
Rd ← Rd • K
Z,N,V
1
OR
Rd, Rr
Logical OR Registers
Rd ← Rd v Rr
Z,N,V
1
ORI
Rd, K
Logical OR Register and Constant
Rd ← Rd v K
Z,N,V
1
EOR
Rd, Rr
Exclusive OR Registers
Rd ← Rd ⊕ Rr
Z,N,V
1
1
COM
Rd
One’s Complement
Rd ← 0xFF − Rd
Z,C,N,V
1
NEG
Rd
Two’s Complement
Rd ← 0x00 − Rd
Z,C,N,V,H
1
SBR
Rd,K
Set Bit(s) in Register
Rd ← Rd v K
Z,N,V
1
CBR
Rd,K
Clear Bit(s) in Register
Rd ← Rd • (0xFF - K)
Z,N,V
1
INC
Rd
Increment
Rd ← Rd + 1
Z,N,V
1
DEC
Rd
Decrement
Rd ← Rd − 1
Z,N,V
1
TST
Rd
Test for Zero or Minus
Rd ← Rd • Rd
Z,N,V
1
CLR
Rd
Clear Register
Rd ← Rd ⊕ Rd
Z,N,V
1
SER
Rd
Set Register
Rd ← 0xFF
None
1
MUL
Rd, Rr
Multiply Unsigned
R1:R0 ← Rd x Rr
Z,C
2
MULS
Rd, Rr
Multiply Signed
R1:R0 ← Rd x Rr
Z,C
2
MULSU
Rd, Rr
Multiply Signed with Unsigned
R1:R0 ← Rd x Rr
Z,C
2
FMUL
Rd, Rr
Fractional Multiply Unsigned
R1:R0 ← (Rd x Rr) <<
1
R1:R0 ← (Rd x Rr) << 1
R1:R0 ← (Rd x Rr) << 1
Z,C
2
Z,C
2
Z,C
2
2
FMULS
Rd, Rr
Fractional Multiply Signed
FMULSU
Rd, Rr
Fractional Multiply Signed with Unsigned
BRANCH INSTRUCTIONS
RJMP
k
IJMP
Relative Jump
PC ← PC + k + 1
None
Indirect Jump to (Z)
PC ← Z
None
2
JMP(1)
k
Direct Jump
PC ← k
None
3
RCALL
k
Relative Subroutine Call
PC ← PC + k + 1
None
3
Indirect Call to (Z)
PC ← Z
None
3
Direct Subroutine Call
PC ← k
None
4
RET
Subroutine Return
PC ← STACK
None
4
RETI
Interrupt Return
PC ← STACK
I
4
ICALL
CALL(1)
k
CPSE
Rd,Rr
Compare, Skip if Equal
if (Rd = Rr) PC ← PC + 2 or 3
None
CP
Rd,Rr
Compare
Rd − Rr
Z, N,V,C,H
1
CPC
Rd,Rr
Compare with Carry
Rd − Rr − C
Z, N,V,C,H
1
CPI
Rd,K
Compare Register with Immediate
Rd − K
Z, N,V,C,H
SBRC
Rr, b
Skip if Bit in Register Cleared
if (Rr(b)=0) PC ← PC + 2 or 3
None
1/2/3
1/2/3
1
SBRS
Rr, b
Skip if Bit in Register is Set
if (Rr(b)=1) PC ← PC + 2 or 3
None
1/2/3
SBIC
P, b
Skip if Bit in I/O Register Cleared
if (P(b)=0) PC ← PC + 2 or 3
None
1/2/3
SBIS
P, b
Skip if Bit in I/O Register is Set
if (P(b)=1) PC ← PC + 2 or 3
None
1/2/3
BRBS
s, k
Branch if Status Flag Set
if (SREG(s) = 1) then PC←PC+k + 1
None
1/2
BRBC
s, k
Branch if Status Flag Cleared
if (SREG(s) = 0) then PC←PC+k + 1
None
1/2
BREQ
k
Branch if Equal
if (Z = 1) then PC ← PC + k + 1
None
1/2
BRNE
k
Branch if Not Equal
if (Z = 0) then PC ← PC + k + 1
None
1/2
BRCS
k
Branch if Carry Set
if (C = 1) then PC ← PC + k + 1
None
1/2
BRCC
k
Branch if Carry Cleared
if (C = 0) then PC ← PC + k + 1
None
1/2
BRSH
k
Branch if Same or Higher
if (C = 0) then PC ← PC + k + 1
None
1/2
BRLO
k
Branch if Lower
if (C = 1) then PC ← PC + k + 1
None
1/2
BRMI
k
Branch if Minus
if (N = 1) then PC ← PC + k + 1
None
1/2
BRPL
k
Branch if Plus
if (N = 0) then PC ← PC + k + 1
None
1/2
BRGE
k
Branch if Greater or Equal, Signed
if (N ⊕ V= 0) then PC ← PC + k + 1
None
1/2
BRLT
k
Branch if Less Than Zero, Signed
if (N ⊕ V= 1) then PC ← PC + k + 1
None
1/2
BRHS
k
Branch if Half Carry Flag Set
if (H = 1) then PC ← PC + k + 1
None
1/2
BRHC
k
Branch if Half Carry Flag Cleared
if (H = 0) then PC ← PC + k + 1
None
1/2
BRTS
k
Branch if T Flag Set
if (T = 1) then PC ← PC + k + 1
None
1/2
BRTC
k
Branch if T Flag Cleared
if (T = 0) then PC ← PC + k + 1
None
1/2
BRVS
k
Branch if Overflow Flag is Set
if (V = 1) then PC ← PC + k + 1
None
1/2
BRVC
k
Branch if Overflow Flag is Cleared
if (V = 0) then PC ← PC + k + 1
None
1/2
12
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
7. Instruction Set Summary (Continued)
Mnemonics
Operands
Description
Operation
Flags
#Clocks
BRIE
k
Branch if Interrupt Enabled
if ( I = 1) then PC ← PC + k + 1
None
1/2
BRID
k
Branch if Interrupt Disabled
if ( I = 0) then PC ← PC + k + 1
None
1/2
BIT AND BIT-TEST INSTRUCTIONS
SBI
P,b
Set Bit in I/O Register
I/O(P,b) ← 1
None
2
CBI
P,b
Clear Bit in I/O Register
I/O(P,b) ← 0
None
2
LSL
Rd
Logical Shift Left
Rd(n+1) ← Rd(n), Rd(0) ← 0
Z,C,N,V
1
LSR
Rd
Logical Shift Right
Rd(n) ← Rd(n+1), Rd(7) ← 0
Z,C,N,V
1
ROL
Rd
Rotate Left Through Carry
Rd(0)←C,Rd(n+1)← Rd(n),C←Rd(7)
Z,C,N,V
1
ROR
Rd
Rotate Right Through Carry
Rd(7)←C,Rd(n)← Rd(n+1),C←Rd(0)
Z,C,N,V
1
ASR
Rd
Arithmetic Shift Right
Rd(n) ← Rd(n+1), n=0..6
Z,C,N,V
1
SWAP
Rd
Swap Nibbles
Rd(3..0)←Rd(7..4),Rd(7..4)←Rd(3..0)
None
1
BSET
s
Flag Set
SREG(s) ← 1
SREG(s)
1
BCLR
s
Flag Clear
SREG(s) ← 0
SREG(s)
1
BST
Rr, b
Bit Store from Register to T
T ← Rr(b)
T
1
BLD
Rd, b
Bit load from T to Register
Rd(b) ← T
None
1
SEC
Set Carry
C←1
C
1
CLC
Clear Carry
C←0
C
1
SEN
Set Negative Flag
N←1
N
1
CLN
Clear Negative Flag
N←0
N
1
SEZ
Set Zero Flag
Z←1
Z
1
CLZ
Clear Zero Flag
Z←0
Z
1
SEI
Global Interrupt Enable
I←1
I
1
CLI
Global Interrupt Disable
I←0
I
1
SES
Set Signed Test Flag
S←1
S
1
CLS
Clear Signed Test Flag
S←0
S
1
SEV
Set Twos Complement Overflow.
V←1
V
1
CLV
Clear Twos Complement Overflow
V←0
V
1
SET
Set T in SREG
T←1
T
1
CLT
Clear T in SREG
T←0
T
1
SEH
CLH
Set Half Carry Flag in SREG
Clear Half Carry Flag in SREG
H←1
H←0
H
H
1
1
Rd ← Rr
Rd+1:Rd ← Rr+1:Rr
None
1
None
1
1
DATA TRANSFER INSTRUCTIONS
MOV
Rd, Rr
Move Between Registers
MOVW
Rd, Rr
Copy Register Word
LDI
Rd, K
Load Immediate
Rd ← K
None
LD
Rd, X
Load Indirect
Rd ← (X)
None
2
LD
Rd, X+
Load Indirect and Post-Inc.
Rd ← (X), X ← X + 1
None
2
2
LD
Rd, - X
Load Indirect and Pre-Dec.
X ← X - 1, Rd ← (X)
None
LD
Rd, Y
Load Indirect
Rd ← (Y)
None
2
LD
Rd, Y+
Load Indirect and Post-Inc.
Rd ← (Y), Y ← Y + 1
None
2
LD
Rd, - Y
Load Indirect and Pre-Dec.
Y ← Y - 1, Rd ← (Y)
None
2
LDD
Rd,Y+q
Load Indirect with Displacement
Rd ← (Y + q)
None
2
LD
Rd, Z
Load Indirect
Rd ← (Z)
None
2
LD
Rd, Z+
Load Indirect and Post-Inc.
Rd ← (Z), Z ← Z+1
None
2
LD
Rd, -Z
Load Indirect and Pre-Dec.
Z ← Z - 1, Rd ← (Z)
None
2
LDD
Rd, Z+q
Load Indirect with Displacement
Rd ← (Z + q)
None
2
LDS
Rd, k
Load Direct from SRAM
Rd ← (k)
None
2
ST
X, Rr
Store Indirect
(X) ← Rr
None
2
ST
X+, Rr
Store Indirect and Post-Inc.
(X) ← Rr, X ← X + 1
None
2
ST
- X, Rr
Store Indirect and Pre-Dec.
X ← X - 1, (X) ← Rr
None
2
ST
Y, Rr
Store Indirect
(Y) ← Rr
None
2
ST
Y+, Rr
Store Indirect and Post-Inc.
(Y) ← Rr, Y ← Y + 1
None
2
ST
- Y, Rr
Store Indirect and Pre-Dec.
Y ← Y - 1, (Y) ← Rr
None
2
STD
Y+q,Rr
Store Indirect with Displacement
(Y + q) ← Rr
None
2
ST
Z, Rr
Store Indirect
(Z) ← Rr
None
2
ST
Z+, Rr
Store Indirect and Post-Inc.
(Z) ← Rr, Z ← Z + 1
None
2
ST
-Z, Rr
Store Indirect and Pre-Dec.
Z ← Z - 1, (Z) ← Rr
None
2
STD
Z+q,Rr
Store Indirect with Displacement
(Z + q) ← Rr
None
2
STS
k, Rr
Store Direct to SRAM
(k) ← Rr
None
2
Load Program Memory
R0 ← (Z)
None
3
LPM
LPM
Rd, Z
Load Program Memory
Rd ← (Z)
None
3
LPM
Rd, Z+
Load Program Memory and Post-Inc
Rd ← (Z), Z ← Z+1
None
3
Store Program Memory
(Z) ← R1:R0
None
-
Rd, P
In Port
Rd ← P
None
1
SPM
IN
13
8024AS–AVR–04/08
7. Instruction Set Summary (Continued)
Mnemonics
Operands
Description
Operation
Flags
#Clocks
OUT
P, Rr
Out Port
P ← Rr
None
1
PUSH
Rr
Push Register on Stack
STACK ← Rr
None
2
POP
Rd
Pop Register from Stack
Rd ← STACK
None
2
MCU CONTROL INSTRUCTIONS
NOP
No Operation
None
1
SLEEP
Sleep
(see specific descr. for Sleep function)
None
1
WDR
BREAK
Watchdog Reset
Break
(see specific descr. for WDR/timer)
For On-chip Debug Only
None
None
1
N/A
Note:
14
1. These instructions are only available in ATmega16HVA.
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
8. Ordering Information
8.1
ATmega8HVA
Speed (MHz)
Power Supply
Ordering Code
Package(1)
Operation Range
1-4
1.8 - 9.0V
ATmega8HVA-4CKU
ATmega8HVA-4TU
36CK1
28T
-20 to +85°C
Notes:
1. Pb-free packaging, complies with the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
Halide free and fully Green.
Package Type
36CK1
36-pad, (6.50 x 3.50 x 0.85 mm Body, 0.60 mm Pitch), Land Grid Array (LGA) Package.
28T
28-lead (8 x 13.4 mm) Plastic Thin Small Outline Package, Type I (TSOP)
15
8024AS–AVR–04/08
8.2
ATmega16HVA
Speed (MHz)
Power Supply
Ordering Code
Package(1)
Operation Range
1-4
1.8 - 9.0V
ATmega16HVA-4CKU
ATmega16HVA-4TU
36CK1
28T
-20 to +85°C
Notes:
1. Pb-free packaging, complies with the European Directive for Restriction of Hazardous Substances (RoHS directive). Also
Halide free and fully Green.
Package Type
36CK1
36-pad, (6.50 x 3.50 x 0.85 mm Body, 0.60 mm Pitch), Land Grid Array (LGA) Package.
28T
28-lead (8 x 13.4 mm) Plastic Thin Small Outline Package, Type I (TSOP)
16
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
9. Packaging Information
9.1
36CK1
D
Marked A1 ID
E
A1 (Substrate)
Top View
A (Total PKG HGT)
0.08
Side View
A1 BALL PAD CORNER
8
7
6
5
3
4
2
1
A
COMMON DIMENSIONS
(Unit of Measure = mm)
B
e
C
D
E
e2
L1
e1
e
Øb
b
L
SYMBOL
MIN
NOM
MAX
D
6.40
6.50
6.60
E
3.40
3.50
3.60
A
0.59
0.66
0.73
A1
0.17
0.21
0.25
L
Bottom View
Notes:
1. This drawing is for general information only.
2. Metal pad dimensions.
3.
0.70 REF
L1
0.35 REF
b
0.35 REF
Øb
NOTE
0.32
0.35
e
0.60 TYP
e1
0.80 REF
e2
0.55 REF
2
2
0.38
2
= > Dummy pad.
3/15/07
R
2325 Orchard Parkway
San Jose, CA 95131
TITLE
36CK1, 36-Pad, 6.50 x 3.50 x 0.73 mm Body,
0.60 mm Pitch, Land Grid Array (LGA) Package
DRAWING NO.
36CK1
REV.
D
17
8024AS–AVR–04/08
9.2
28T
PIN 1
0º ~ 5º
c
Pin 1 Identifier Area
D1 D
L
b
e
L1
A2
E
A
GAGE PLANE
SEATING PLANE
COMMON DIMENSIONS
(Unit of Measure = mm)
A1
MIN
NOM
MAX
A
–
–
1.20
A1
0.05
–
0.15
A2
0.90
1.00
1.05
D
13.20
13.40
13.60
D1
11.70
11.80
11.90
Note 2
E
7.90
8.00
8.10
Note 2
L
0.50
0.60
0.70
SYMBOL
Notes:
1. This package conforms to JEDEC reference MO-183.
2. Dimensions D1 and E do not include mold protrusion. Allowable
protrusion on E is 0.15 mm per side and on D1 is 0.25 mm per side.
3. Lead coplanarity is 0.10 mm maximum.
L1
NOTE
0.25 BASIC
b
0.17
0.22
0.27
c
0.10
–
0.21
e
0.55 BASIC
12/06/02
R
18
2325 Orchard Parkway
San Jose, CA 95131
TITLE
28T, 28-lead (8 x 13.4 mm) Plastic Thin Small Outline
Package, Type I (TSOP)
DRAWING NO.
REV.
28T
C
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
10. Errata
10.1
10.1.1
ATmega8HVA
Rev. A
No known errata.
10.2
10.2.1
ATmega16HVA
Rev. A
No known errata.
19
8024AS–AVR–04/08
11. Datasheet Revision History
11.1
Rev. 8024A – 04/08
1.
20
Initial revision
ATmega8HVA/16HVA
8024AS–AVR–04/08
ATmega8HVA/16HVA
21
8024AS–AVR–04/08
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8024AS–AVR–04/08