Xycom CHIP4e+, Руководство пользователя

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Register 233h – Flash BIOS Control
Register 233h controls the signals shown in Table 0-8.
Table 0-8. Register 233h - Flash BIOS Control Register
Bit Signal Result R/W
0 FLA15 Flash address 15 - page control bit R/W
1 FLA16 Flash address 16 - page control bit R/W
2 FLA17 Flash address 17 - page control bit R/W
3 FLA18 Flash address 18 - page control bit R/W
4 FPSEL0 Flat panel select bit 0 R
5 FPSEL1 Flat panel select bit 1 R
6 FPSEL2 Flat panel select bit 2 R
7 FPSEL3 Flat panel select bit 3 R
Register 234h – I/O Port Location
Register 234h controls the I/O port location register shown in Table 0-9.
Table 0-9. Register 234h - I/O Port Location Register
Bit Signal Result R/W
0 Reserved 0 R
1 Reserved 0 R
2 Reserved 0 R
3 Reserved 0 R
4 Reserved 0 R
5 Reserved 0 R
6 I/O port bit0 0 R/W
7 I/O port bit1 0 R/W