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43 lines
2.0 KiB
Plaintext
43 lines
2.0 KiB
Plaintext
AST RESEARCH TECHNICAL BULLETIN TB-0031 7-17-84
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AST MONOGRAPHPLUS TECHNICAL REFERENCE MANUAL
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In Table 4-1 that is located on page 4-2 of Technical Reference Manual
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(part no. 000127-002A) there are some corrections necessary under the
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column "Graphics Mode". A "change page" has recently been distributed
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to make corrections, but it also contains one error in the table.
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Listed below is the corrected table.
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Table 4-1 CRTC Internal Registers
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Register Text Mode Graphics Mode
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Number Parameter (decimal/hex) (decimal hex) Units
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:00 Horizontal total 97/:61 56/:38 Characters
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:01 Horizontal display 80/:50 42/:2D Characters
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:02 HSync position 82/:52 48/:30 Characters
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:03 HSync width 15/:0F 08/:08 Characters
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:04 Vertical total 25/:19 90/:5A Rows
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:05 Vertical adjust 06/:06 00/:00 Lines
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:06 Vertical displayed 25/:19 87/:57 Rows
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:07 VSync position 25/:19 87/:57 Rows
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:08 Interlace mode 02/:02 02/:02 -----
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:09 Maximum scan
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line 13/:0D 03/:03 Lines
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address
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:0A Cursor start line 11/:0B 00/:00 Lines
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:0B Cursor end line 12/:0C 00/:00 Lines
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:0C Screen start 00/:00 00/:00 -----
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address (high)
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:0D Screen start 00/:00 00/:00 -----
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address (low)
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:0E Cursor address 00/:00 00/:00 -----
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(high)
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:0F Cursor address 00/:00 32/:20 -----
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(low)
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:10 Reserved ------ ------ -----
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:11 Reserved ------ ------ -----
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