
10: 2D BITBLT ENGINE
S1D13806 SERIES PROGRAMMING NOTES
EPSON
2-51
AND EXAMPLES (X28B-G-003-01)
The BitBLT FIFO Not Empty Status bit is a read-only status bit. When this bit returns a 0, the Bit-
BLT FIFO is empty. When this bit returns a 1, the BitBLT FIFO contains at least one data (or one
word).
The BitBLT FIFO Half Full Status bit is a read-only status bit. When this bit returns a 0, the BitBLT
FIFO is less than half full (contains 7 or less data). When this bit returns a 1, the BitBLT FIFO is
half full or greater than half full (contains 8 or more data).
The BitBLT FIFO Full Status bit is a read-only status bit. When this bit returns a 0, the BitBLT
FIFO is not full (contains less than 16 data). When this bit returns a 1, the BitBLT FIFO is full (con-
tains 16 data).
The BitBLT Destination Linear Select bit specifies the storage method of the destination BitBLT. If
this bit = 0, the destination BitBLT is stored as a rectangular region of memory. If this bit = 1, the
destination BitBLT is stored as a contiguous linear block of memory.
The BitBLT Source Linear Select bit specifies the storage method of the source BitBLT. If this bit =
0, the source BitBLT is stored as a rectangular region of memory. If this bit = 1, the source BitBLT
is stored as a contiguous linear block of memory.
REG[100h] BitBLT Control Register 0
BitBLT
Active Status
BitBLT FIFO
Not Empty
Status (RO)
BitBLT FIFO
Half Full
Status (RO)
BitBLT FIFO
Full Status
(RO)
n/a
BitBLT
Destination
Linear Select
BitBLT
Source Linear
Select
REG[100h] BitBLT Control Register 0
BitBLT
Active Status
BitBLT FIFO
Not Empty
Status (RO)
BitBLT FIFO
Half Full
Status (RO)
BitBLT FIFO
Full Status
(RO)
n/a
BitBLT
Destination
Linear Select
BitBLT
Source Linear
Select
REG[100h] BitBLT Control Register 0
BitBLT
Active Status
BitBLT FIFO
Not Empty
Status (RO)
BitBLT FIFO
Half Full
Status (RO)
BitBLT FIFO
Full Status
(RO)
n/a
BitBLT
Destination
Linear Select
BitBLT
Source Linear
Select
REG[100h] BitBLT Control Register 0
BitBLT
Active Status
BitBLT FIFO
Not Empty
Status (RO)
BitBLT FIFO
Half Full
Status (RO)
BitBLT FIFO
Full Status
(RO)
n/a
BitBLT
Destination
Linear Select
BitBLT
Source Linear
Select
REG[100h] BitBLT Control Register 0
BitBLT
Active Status
BitBLT FIFO
Not Empty
Status (RO)
BitBLT FIFO
Half Full
Status (RO)
BitBLT FIFO
Full Status
(RO)
n/a
BitBLT
Destination
Linear Select
BitBLT
Source Linear
Select