tmp1940cyaf TOSHIBA Semiconductor CORPORATION, tmp1940cyaf Datasheet - Page 127

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tmp1940cyaf

Manufacturer Part Number
tmp1940cyaf
Description
32-bit Tx System Risc Tx19 Family
Manufacturer
TOSHIBA Semiconductor CORPORATION
Datasheet
Program the BMA2 register as follows to cause
space starting at 0x1FC8_0000.
determines whether the A30–A15 bits of the address should be compared or masked. The A31 bit
is always compared. Bits 15–9 of the MA2 field must be cleared so that the A30–A24 bits are
always compared.
compared to the value of the BA2 field. Consequently, the 512-Kbyte address range between
0x1FC8_0000 and 0x1FCF_FFFF is defined as the CS2 space.
Program the BMA2 register as follows to cause
space starting at 0x1FC8_0000.
determines whether the A30–A15 bits of the address should be compared or masked. The A31 bit
is always compared. Bits 15–9 of the MA2 field must be cleared so that the A30–A24 bits are
always compared.
compared to the value of the BA2 field. Note, however, that the 512-Kbyte range between
0x1FC0_0000 and 0x1FC7_FFFF is reserved for the on-chip ROM. Consequently, the 512Kbyte
address range between 0x1FC8_0000 and 0x1FCF_FFFF is defined as the CS2 space.
31
31
Note:
0 0 0 1 1 1 1 1 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1
0 0 0 1 1 1 1 1 1 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1
The BA2 field specifies the upper 16 bits of the starting address, or 0x1FC8. The MA2 field
When the BMA2 register is programmed as shown above, the A31–A19 bits of the address are
The BA2 field specifies the upper 16 bits of the starting address, or 0x1FC8. The MA2 field
When the BMA2 register is programmed as shown above, the A31–A20 bits of the address are
1
1
The TMP1940CYAF does not assert any
0x1FC_0000 through 0x1FC7_FFFF
0x4000_0000 through 0x4007_FFFF
0xFFFF_8000 through 0xFFFF_BFFF
F
F
BA2
BA2
C
C
TMP1940CYAF-85
BMA2 Register Value
BMA2 Register Value
8
8
16 15
16 15
CSn
CS
0
0
CS
signal in the following address ranges:
2
2
to be asserted in the 512 Kbytes of address
to be asserted in the 1 Mbytes of address
0
0
MA2
MA2
TMP1940CYAF
0
1
F
F
0
0

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