ATMEGA162-16PC Atmel, ATMEGA162-16PC Datasheet - Page 210

• Manufacturer Part Number: ATMEGA162-16PC
• Description: IC MCU AVR 16K 5V 16MHZ 40-DIP
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162-16PC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

ATmega162 Boundary-
scan Order
210
ATmega162(V/U/L)
Table 87. Boundary-scan Signals for the Analog Comparator
Table 88 shows the Scan order between TDI and TDO when the Boundary-scan chain
is selected as data path. Bit 0 is the LSB; the first bit scanned in, and the first bit
scanned out. The scan order follows the pinout order as far as possible. Therefore, the
bits of Port A and Port E is scanned in the opposite bit order of the other ports. Excep-
tions from the rules are the Scan chains for the analog circuits, which constitute the
most significant bits of the scan chain regardless of which physical pin they are con-
nected to. In Figure 87, PXn. Data corresponds to FF0, PXn. Control corresponds to
FF1, and PXn. Pullup_enable corresponds to FF2. Bit 4, 5, 6, and 7of Port C is not in the
scan chain, since these pins constitute the TAP pins when the JTAG is enabled.
Table 88. ATmega162 Boundary-scan Order
Signal
Name
AC_IDLE
ACO
ACBG
Bit Number
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
Direction as
seen from the
Comparator
input
output
input
Description
Turns off Analog
comparator
when true
Analog
Comparator
Output
Bandgap
Reference
enable
Signal Name
AC_IDLE
ACO
ACBG
PB0.Data
PB0.Control
PB0.Pullup_Enable
PB1.Data
PB1.Control
PB1.Pullup_Enable
PB2.Data
PB2.Control
PB2.Pullup_Enable
PB3.Data
PB3.Control
PB3.Pullup_Enable
PB4.Data
PB4.Control
PB4.Pullup_Enable
Recommended
Input when Not
in Use
1
Will become
input to µC code
being executed
0
Module
Comparator
Port B
Output Values when
Recommended
Inputs are Used
Depends upon µC
code being executed
0
Depends upon µC
code being executed
2513C–AVR–09/02