MB87P2020 Datasheet, PDF (320/356 Pages) Fujitsu Component Limited. – Colour LCD/CRT/TV Controller

MB87J2120, MB87P2020-A Hardware Manual
Table 2-1: Flags for MB87J2120 (Lavender) and MB87P2020-A (Jasmine)
Name
RMAU
RPE
EBPP
CWEN
EINT0
STOUT
GSYNC
BWVIO
EOV
ECODE
EDATA
BDPA
BIPA
BMCP
BMAU
Default
Bit
Description
behaviour
(FLAGRES)
25 X X ^{1: MAU is ready for command execution}
24 X X ^{1: PE is ready for command execution}
1: Colour depth for source- and target layer is different
23
X
X
during MemCP command
In this error case MCP reads data from input FIFO but
performs no further actions.
1: Command register can be written.
This flag has to be polled before a command can be writ-
22 X X _{tena. Otherwise data loss and synchronization loss}
between Jasmine/Lavender and MCU may occur.
1: Lavender/Jasmine external interrupt occurred
21
X
X
This interrupt is currently assigned to SPB device which
is implemented on chip but outside the Lavender/Jasmine
core.
After reset: Flag is set (’1’) when SDRAM initialisation
20
X
X
time is over
Else: Flag is set (’1’) when SDC forces SDRAM refresh.
This indicates a high SDRAM bus load.
19 X X ^{This flag is directly connected to GPU Sync Mixer 6b.}
The Sync Mixer default settings generate no sync signal.
1: GPU bandwidth violation occurred which means that
18 X X the GPU didn’t receive requested data from SDRAM.
This flag indicates a high SDRAM bus load.
1: A command pipeline overflow has occurred.
17 X X A command was sent to Jasmine while CWEN flag was
’0’.
1: Wrong error code was written to command register
16 X X This command code is internally treated as NoOp com-
mand.
1: Execution device (PP or IPA) tried to read from empty
15
X input FIFO
This may indicate a wrong behaviour of execution device.
12 X X ^{1: DPA is performing an SDRAM access.}
11 X X ^{1: IPA is executing a command}
10 X X ^{1: MCP is executing a command}
9 X X ^{1: MAU is executing a command}
static
(0)
static
(0)
static
(0)
dynamic
(1)
static
(0)
static
(0)
static
(0)
static
(0)
static
(0)
static
(0)
static
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