MC908QT4MPE datasheet(146/184 Pages) FREESCALE

146 / 184 page

Development Support

MC68HC908QY/QT Family Data Sheet, Rev. 5

146

Freescale Semiconductor

A sequence of IREAD or IWRITE commands can access a block of memory sequentially over the full

64-Kbyte memory map.

Table 15-4. WRITE (Write Memory) Command

Description

Write byte to memory

Operand

2-byte address in high-byte:low-byte order; low byte followed by data

byte

Data Returned

None

Opcode

$49

Command Sequence

Table 15-5. IREAD (Indexed Read) Command

Description

Read next 2 bytes in memory from last address accessed

Operand

None

Data Returned

Returns contents of next two addresses

Opcode

$1A

Command Sequence

Table 15-6. IWRITE (Indexed Write) Command

Description

Write to last address accessed + 1

Operand

Single data byte

Data Returned

None

Opcode

$19

Command Sequence

WRITE

ECHO

FROM HOST

ADDRESS

HIGH

ADDRESS

HIGH

ADDRESS

LOW

ADDRESS

LOW

DATA

IREAD

ECHO

DATA

RETURN

DATA

FROM HOST

IWRITE

ECHO

FROM HOST

DATA

MC908QT4MPE Datasheet(PDF) 146 Page - Freescale Semiconductor, Inc

MC908QT4MPE Datasheet(HTML) 146 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL