Rainbow-electronics ATmega163L Manual de usuario descargar pdf (Pagina 135)

ATmega163(L)

135

Notes: 1. Includes variation over voltage and temperature after RC oscillator has been calibrated to 1.0 MHz

2. Parallel EEPROM programming takes 1K cycles

Figure 87. Serial Programming Waveforms

Table 59. Maximum Programming Times for Non-Volatile Memory

Operation Symbol Number of RC

oscillator cycles

Parallel / serial programming Self programming

(1)

2.7V 5.0V

Chip Erase t

WD_CE

16K 32 ms 30 ms 17 ms

Flash Write t

WD_FLASH

8K 16 ms 15 ms 8.5 ms

EEPROM Write

(2)

WD_EEPROM

2K 4 ms 3.8 ms 2.2 ms

Fuse/lock bit write t

WD_FUSE

1K 2 ms 1.9 ms 1.1 ms

MSB

LSB

SERIAL CLOCK INPUT

PB7(SCK)

SERIAL DATA INPUT

PB5 (MOSI)

PB6 (MISO)

SAMPLE

SERIAL DATA OUTPUT

Table 60. Serial Programming Instruction Set

Instruction Instruction Format Operation

Byte 1 Byte 2 Byte 3 Byte4

Programming Enable

1010 1100 0101 0011 xxxx xxxx xxxx xxxx Enable Serial Programming after

RESET

goes low.

Chip Erase 1010 1100 100x xxxx xxxx xxxx xxxx xxxx Chip Erase EEPROM and Flash.

Read Program Memory

0010 H000 xxxa aaaa bbbb bbbb oooo oooo Read H (high or low) data o from

Program memory at word address

a:b.

Load Program Memory

Page

0100 H000 xxxx xxxx xxbb bbbb iiii iiii Write H (high or low) data i to

Program Memory page at word

address b.

Write Program Memory

Page

0100 1100 xxxa aaaa bbxx xxxx iiii iiii Write Program Memory Page at

address a:b.

Read EEPROM Memory

1010 0000 xxxx xxxa bbbb bbbb oooo oooo Read data o from EEPROM

memory at address a:b.

Write EEPROM Memory

1100 0000 xxxx xxxa bbbb bbbb iiii iiii Write data i to EEPROM memory

at address a:b.

Read Lock Bits

0101 1000 xxxx xxxx xxxx xxxx xx65 4321 Read Lock bits. ‘0’ = programmed,

‘1’ = unprogrammed.

Write Lock Bits

1010 1100 111x xxxx xxxx xxxx 1165 4321 Write Lock bits. Set bits 6 - 1 = ’0’ to

program Lock bits.

1 2 ... 130 131 132 133 134 135 136 137 138 139 140 ... 155 156

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