CC1010-RTY1 datasheet(38/152 Pages) TI

38 / 152 page

CC1010

SWRS047

Page 38 of 152

Reading an address while writing will

return 0xFF. This can be used for polling

to determine when a page write is finished.

When a read instruction returns anything

other than $FF all flash write operations

have finished.

15.12.1 SPI Flash Programming

Instructions

9 instructions are defined to perform the

serial Flash programming. These are

shown in Table 16.

Instruction

Byte 1

Byte 2

Byte 3

Byte 4

Operation

Programming

Enable

1010 1100

0101 0011

xxxx xxxx

Enable serial

programming after

PROG

is set low

Set Flash

Timing

1010 1100

0101 1101

xxxx xxxx

xxii iiii

Set the Flash timing

Chip Erase

1010 1100

100

x xxxx

xxxx xxxx

Chip erase. Clears all

pages, including the

lock bits.

Load Program

Memory Page

0100 H000

xxxx xxxx

bbbb bb

iiii iiii

Load data i to

Programming Buffer at

address b:H

Write Program

Memory Page

0100 1100

aaaa aaaa

xxxx xxxx

Write the loaded page

at address a.

Read Program

Memory

0010 H000

aaaa aaaa

bbbb bb

oooo oooo

Read data o at address

a:b:H

Write Lock Bits

1010 1100

111

x xxxx

xxxx xxxx

iiii iiii

Write Lock Bits. Bits

written will be ANDed

together with the

existing lock bits.

Read Lock

Bits

0101 1000

xxxx xxxx

oooo oooo

Read lock bits.

Read

Signature Byte

0011 0000

xxxx xxxx

xxxx xsss

oooo oooo

Read signature byte o

at address s

a: Page address

b: Even byte address

H: Odd or even (high or low) byte

c: Clock timing bits

s: Signature byte address

i: Input data

o: Output data

x: Don’t care

Table 16. SPI Flash Programming Instructions

Each instruction is sent in the order bytes

1 to 4, most significant bits first. All 4 bytes

must be sent, even if the last bits are 'x'.

The timing for the SPI interface is shown

in Figure 5. All timing parameters are

listed in Table 17.

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