32186 datasheet(808/1032 Pages) RENESAS

808 / 1032 page

NON-BREAK DEBUG (NBD)

16-10

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

3) Address field

Bit Name

Function

Content

A0–A31

Specify address

A0–A31 should be specified in big endian format (A0 = MSB).

When accessing NBD space: specify with 12 bits of A0–A11

When accessing CPU space: specify with 32 bits of A0–A31

4) Write data field

Bit Name

Function

Content

D0–D31

Specify write data

D0–D31 should be specified in big endian format (D0 = MSB).

The necessary number of bits varies depending on how the R/W bit

and SIZ1–SIZ0 bits in the control field are set.

(See Table 16.5.1 Bit Assignments of a Command Packet)

(2) Flag sense packet (output)

Table 16.5.2 Bit Assignments of a Flag Sense Packet

Bit Name

Function

Content

RFLG

Indicates that the internal operation of

0: Not Ready

NBD is completed

1: Ready

(3) Read data packet (output)

Table 16.5.3 Bit Assignments of a Read Data Packet

16.5 RAM Monitor Function

Note 1: When the NBD space access is selected, only 8-bit access is accepted.

Bit Name

Function

Content

D0–D31

Output read data

D0–D31 should be specified in big endian format (D0 = MSB).

The number of bits to be output varies depending on how the R/W

bit and SIZ1–SIZ0 bits in the control field are set.

(See Table 16.5.3 Bit Assignments of a Read Data Packet)

NBDD2

NBDD1

NBDD3

NBDD0

RFLG

Bit arrangement

First

Last

Output

order

NBDD1

NBDD0

Bit arrangement

When accesing NBD space

NBDD3

NBDD2

During write

During

32-bit write

During

8-bit write

During

16-bit write

During

write

When accesing CPU space

D30

D31

D28

D29

D26

D27

D24

D25

D22

D23

D20

D21

D10

D11

During read

(Note 1)

D18

D19

D16

D17

D14

D15

D12

D13

√

√√

√

√√

√

√ : Necessary, -: Unnecessary

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