attiny167-esxz ATMEL Corporation, attiny167-esxz Datasheet - Page 220

• Manufacturer Part Number: attiny167-esxz
• Description: 8-bit Avr 8-bit Microcontroller Microcontroller With 16k Bytes In-system Programmable Flash And Lin Controller
• Manufacturer: ATMEL Corporation

220
ATtiny167
Table 21-9.
Table 21-10. Pin Values Used to Enter Programming Mode
Table 21-11. XA1 and XA0 Coding
Programming Mode
XA1
0
0
1
1
Signal Name in
PAGEL / BS1
RDY / BSY
XA1 / BS2
DATA
+12V
PAGEL / BS1
XA0
WR
OE
XA1 / BS2
XA0
XA0
WR
Pin
Pin Name Mapping
0
1
0
1
Action when XTAL1 is Pulsed
Load Flash or EEPROM Address (High or low address byte determined by BS1).
Load Data (High or Low data byte for Flash determined by BS1).
Load Command
No Action, Idle
Pin Name
PA7-PA0
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
I/O
I/O
O
I
I
I
I
I
I
I
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
Symbol
Function
Write Pulse (Active low).
XTAL1 Action Bit 0
- XTAL1 Action Bit 1
- Byte Select 2
- Program Memory and EEPROM data Page Load
- Byte Select 1
XTAL1 (Clock input)
Output Enable (Active low).
0: Device is busy programming,
1: Device is ready for new command.
- Reset (Active low)
- Parallel programming mode (+12V).
Bi-directional Data bus (Output when OE is low).
(“0” selects low byte, “1” selects 2’nd high byte)
(“0” selects low byte, “1” selects high byte)
Value
0
0
0
0
7728A–AUTO–07/08