ATmega169P
Address
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Page
(0xBF)
(0xBE)
(0xBD)
(0xBC)
(0xBB)
(0xBA)
(0xB9)
(0xB8)
(0xB7)
(0xB6)
(0xB5)
(0xB4)
(0xB3)
(0xB2)
(0xB1)
(0xB0)
(0xAF)
(0xAE)
(0xAD)
(0xAC)
(0xAB)
(0xAA)
(0xA9)
(0xA8)
(0xA7)
(0xA6)
(0xA5)
(0xA4)
(0xA3)
(0xA2)
(0xA1)
(0xA0)
(0x9F)
(0x9E)
(0x9D)
(0x9C)
(0x9B)
(0x9A)
(0x99)
(0x98)
(0x97)
(0x96)
(0x95)
(0x94)
(0x93)
(0x92)
(0x91)
(0x90)
(0x8F)
(0x8E)
(0x8D)
(0x8C)
(0x8B)
(0x8A)
(0x89)
(0x88)
(0x87)
(0x86)
(0x85)
(0x84)
(0x83)
(0x82)
(0x81)
(0x80)
(0x7F)
(0x7E)
Reserved
Reserved
Reserved
Reserved
Reserved
USIDR
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
USI Data Register
207
207
208
USISR
USISIF
USIOIF
USIOIE
USIPF
USIDC
USICNT3
USICNT2
USICNT1
USICNT0
USICR
USISIE
USIWM1
USIWM0
USICS1
USICS0
USICLK
USITC
Reserved
ASSR
–
–
–
–
–
–
–
–
–
–
AS2
–
–
–
–
–
–
–
EXCLK
TCN2UB
OCR2UB
TCR2UB
156
Reserved
Reserved
OCR2A
–
–
–
–
–
–
–
–
–
Timer/Counter2 Output Compare Register A
Timer/Counter2 (8-bit)
155
155
TCNT2
Reserved
TCCR2A
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
OCR1BH
OCR1BL
OCR1AH
OCR1AL
ICR1H
–
–
–
–
–
–
CS22
–
–
CS21
–
–
CS20
–
FOC2A
WGM20
COM2A1
COM2A0
WGM21
153
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
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–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Timer/Counter1 - Output Compare Register B High Byte
Timer/Counter1 - Output Compare Register B Low Byte
Timer/Counter1 - Output Compare Register A High Byte
Timer/Counter1 - Output Compare Register A Low Byte
Timer/Counter1 - Input Capture Register High Byte
Timer/Counter1 - Input Capture Register Low Byte
Timer/Counter1 - Counter Register High Byte
132
132
132
132
133
133
132
132
ICR1L
TCNT1H
TCNT1L
Reserved
TCCR1C
TCCR1B
TCCR1A
DIDR1
Timer/Counter1 - Counter Register Low Byte
–
–
–
–
–
–
–
–
–
FOC1A
ICNC1
COM1A1
–
FOC1B
ICES1
COM1A0
–
–
–
WGM12
–
–
CS12
–
–
–
131
130
128
214
232
–
WGM13
COM1B0
–
CS11
WGM11
AIN1D
ADC1D
CS10
WGM10
AIN0D
ADC0D
COM1B1
–
–
–
DIDR0
ADC7D
ADC6D
ADC5D
ADC4D
ADC3D
ADC2D
371
8018A–AVR–03/06