UPD61052 NEC, UPD61052 Datasheet - Page 56

• Manufacturer Part Number: UPD61052
• Description: MPEG2 Audio / Video Encoder
• Manufacturer: NEC

4.3
transfer bytes is a 4-byte unit.
56
While encoding, the host CPU can transfer parameters to the internal CPU through SDRAM. The number of the
SDRAM Write during Executing
N
Host CPU → SDRAM transfer
which requests data transfer
Destination address register
Interrupt register 0 (30H)←
Interrupt register 0 (30H)
Number of transfer bytes
Interrupt register 0 clear
Transfer counter register
Interrupt mask register
Transfer mode register
Transfer data register
(2CH to 2FH) setting
(30H): (02H or 01H)
(24H to 26H) setting
(27H to 29H) setting
(20H) ← 02H setting
Interrupt register 0
during executing
SDRAM writing,
(3FH) ← Data
writing ending?
writing ending?
Mask Interrupt
128 bytes
All data
CINT?
N
Y
Y
Y
Data Sheet S15082EJ4V0DS
N
N
Y
Transfer ending (refer to 4.7)
which requests data transfer
which requests data transfer
Transfer error handling
Interrupt mask register
Interrupt mask register
(2CH to 2FH) setting
Clear mask Interrupt
(2CH to 2FH) setting
Clear mask Interrupt
Interrupt register 0
(refer to 4.8)
(30H): 04H
Return
Return
Y
N
µ
PD61051, 61052