tmp1941af TOSHIBA Semiconductor CORPORATION, tmp1941af Datasheet - Page 117

• Manufacturer Part Number: tmp1941af
• Description: 32-bit Tx System Risc
• Manufacturer: TOSHIBA Semiconductor CORPORATION

BMA2
(0xFFFF_E408)
BMA3
(0xFFFF_E40C)
Note: Bits 9–15 in the BMA2 and BMA3 must be written as zeros. The CS2 and CS3 block sizes can
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
Name
Read/Write
Reset Value
Function
vary from 32 Kbytes to 1 Gbytes. However, the TMP1941AF supports only 16 Mbytes of external
address space. Therefore, bits 9–15 in the BMA0 and BMA1 must be cleared so that A24–A30 of
an address will not be masked.
Figure 9.2 Base/Mask Address Registers (BMA2 and BMA3)
15
23
31
15
23
31
7
7
1
0
0
0
1
0
0
0
CS2 block size
CS3 block size
14
22
30
14
22
30
6
1
0
0
0
6
1
0
0
0
TMP1941AF-77
A23–A16 of the starting address for CS2
A31–A24 of the starting address for CS2
A23–A16 of the starting address for CS3
A31–A24 of the starting address for CS3
13
21
29
13
21
29
5
5
1
0
0
0
1
0
0
0
Must be written as 0.
Must be written as 0.
0: The address compare logic uses this address bit.
0: The address compare logic uses this address bit.
MA2 (A30 – A15)
MA2 (A30 – A15)
MA3 (A30 – A15)
MA3 (A30 – A15)
12
20
28
12
20
28
4
4
1
0
0
0
1
0
0
0
R/W
R/W
BA2
R/W
BA2
R/W
R/W
R/W
BA3
R/W
BA3
R/W
19
27
19
27
11
11
3
3
1
0
0
0
1
0
0
0
10
18
26
10
18
26
2
1
0
0
0
2
1
0
0
0
TMP1941AF
17
25
17
25
1
9
1
9
1
0
0
0
1
0
0
0
2003-03-27
16
24
16
24
0
8
0
8
1
1
0
0
1
1
0
0