TMPR3911 datasheet(108/462 Pages) TOSHIBA

108 / 462 page

Chapter 4 BIU Module

4-8

4.3.2

Access Mapping

This section describes the mapping between the byte lanes of the CPU registers (R[ ]) and the byte

lanes of external signals (D[ ]).

Depending upon CPU endianness, the signal names of some pins are reorganized (see Table 4.3.1).

In this section Xl[ ] means X[ ] in little-endian mode, Xb[ ] means X[ ] in big-endian mode. For

example CASl[ ] means CAS[ ] in little-endian mode, and CASb[ ] means CAS[ ] in big-endian

mode.

example:

In case of little-endian, the physical pins [133:145] are named Dl[7:0], whereas in big-endian

case, the same physical pins are named Db[31:24].

Table 4.3.1 Signal Name in each Endian Mode

Pin No.

3911BXB

3912AU-92

3912XB-92

Little-endian

Big-endian

P7, N7, M6,

R7, N6, M5,

R6, P5

133-145

H12-E14

Dl[7:0]

Db[31:24]

N4, R5, N3,

P3, R4, R3,

P1, N2

146-159

E13-E11

Dl[15:8]

Db[23:16]

C7, D7, C8,

A7, B6, D6,

A6, B5

27-16

H1-F3

Dl[23:16]

Db[15:8]

C5, B4, A5,

C4, A4, B3,

A1, A3

14-2

F4-C3

Dl[31:24]

Db[7:0]

195

CASl[0]*

CASb[3]*

197

CASl[1]*

CASb[2]*

198

CASl[2]*

CASb[1]*

199

CASl[3]*

CASb[0]*

207

DQMLl

DQMHb

208

DQMHl

DQMLb

P11

117

L14

CARD1CSL*

(*1)

R10

118

K12

CARD1CSH*

(*1)

R15

107

L11

CARD2CSL*

(*1)

R13

106

N13

CARD2CSH*

(*1)

*1) not affected by endianness

Table 4.3.2, 4.3.3, 4.3.4, and 4.3.5 show the access mapping in little-endian mode, and Table 4.3.6,

4.3.7, 4.3.8, and 4.3.9 shows the access mapping in big-endian mode.

Note that in both little-endian configuration and big-endian configuration, each device is connected to

the same physical pins.

TMPR3911 Datasheet(PDF) 108 Page - Toshiba Semiconductor

TMPR3911 Datasheet(HTML) 108 Page - Toshiba Semiconductor

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