MS622424-70 查看數據表（PDF） - Mosel Vitelic, Corp
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产品描述 (功能)
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MS622424-70 Datasheet PDF : 11 Pages
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MOSEL VITELIC
Internal Registers
Command Register The Command Register is an 8-bit register.
CB5–CB7
MS622424
CB4 CB3 CB2 CB1 CB0
D7
D0
CB0
PIPE.IN0 reset
This bit is internally ANDed with PIPE.IN0 . Thus when CB0 is “0”, then
PIPE.OUT0 will always be “0”
CB1
PIPE.IN1 reset
This bit is internally ANDed with PIPE.IN1 . Thus when CB1 is “0”, then
PIPE.OUT1 will always be “0”
CB2
PIPE.IN2 set
This bit is internally ORed with PIPE.IN2 . Thus when CB2 is “1”, then
PIPE.OUT2 will always be “1”
CB3
PIPE.IN3 set
This bit is internally ORed with PIPE.IN3 . Thus when CB3 is “1”, then
PIPE.OUT3 will always be “1”
CB4
HFB/AFB
This bit programs the AFB flag indicator. When this bit is “0” the AFB pin
will indicate that the FIFO is half full. When this bit is “1” AFB will indicate
almost full.
CB5–CB7
Reserved
Reserved for internal use.
Status Register
The Status Register is an 8-bit register.
SB5–SB7
SB4 SB3 SB2 SB1 SB0
D7
D0
SB0
RGB0
LSB of RGB counter. RGB0 and RGB1 form two bits of a modulo three
counter that determines which color is operated on (read only).
SB1
RGB1
MSB of RGB data counter (read only).
SB2
EFB
Empty Flag; Write FIFO is empty when this bit is low.
SB3
HFB/AFB
Half or Almost-Full Flag; Like the external AFB pin, this bit can be
programmed by CB4 to indicate that the Write FIFO is at least half full or
at least 7/8 full (eight or fewer empty locations left). This pin is active low.
SB4
FFB
Full Flag; Write FIFO is full when this bit is low.
SB5–SB7
Reserved
Reserved for internal use.
Revision Register The Revision Register is an 8-bit register.
RVB4–RVB7
RVB0
D7
REV0
RVB1
REV1
RVB2
REV2
RVB3
Reserved
RVB4–RVB7 REV4–7
MS622424 Rev. 1.0 January 1995
RVB3 RVB2 RVB1 RVB0
D0
LSB of Revision Register. This register is mask programmed to indicate
the revision number.
Second bit of Revision Register.
MSB of Revision Register.
Reserved for internal use.
Corresponds to board revision input BD.REV0–3
8-4
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