m65761fp Renesas Electronics Corporation., m65761fp Datasheet - Page 17

• Manufacturer Part Number: m65761fp
• Description: Assp>ics For Audio Accessory>karaoke Processors Qm-coder
• Manufacturer: Renesas Electronics Corporation.

M65761FP
Sequence of Setting Up Registers
(1) Initialization sequence of the internal line memory and context table RAM
Note:
REJ03F0234-0200 Rev.2.00 Sep 14, 2007
Page 17 of 33
[During this time, the context table RAM is initialized.]
Status register read out
(Check if processing finished)
End of initialization command
The number of clocks needed for initialization is as follows,
This sequence starts with the initialization set up (see note) of internal line memory by the H/W RESET. It is
followed by the initialization of the context table RAM. (Clear)
Context table RAM
Initialization command issued
(Interrupt generation)
Set up interrupt enable
Interrupt enable set up
When the internal text mode is used.
When the external text mode is used.
H/W Reset
Context mode set up
Initialization of the line memory by H/W RESET is provided for the start of coding and decoding by
preparing the all white (0) data as a reference line. At the same time, it initializes the LNTP bit to
LNTP = 1 for the Typical Prediction.
to
j = 1 ?
Y
2
1
(Error)
N
STAT_REG:
IENB_REG:
CMD_REG:
IENB_REG:
CMD_REG:
SYS_REG:
SYS_REG:
1024 + [clocks]
4096 + [clocks]
d7
d7
0
0
0
0
The ON time for H/W RESET bit (The time from d0 = "1" is written
in to the time when d0 = "0" is written in) should be 100 ns more.
0
−
0
0
0
0
0
0
−
0
0
0
0
0
0
−
0
0
0
0
0
0
−
0
C
0
0
0
0
−
0
0
0
0
0
0
−
0
0
0
0
0
0
−
0
d0
d0
1
0
1
1
1
0
j
; H/W reset bit ON
; H/W reset bit OFF
; C = Context mode set up
; Context table initialized
; Process end interrupt enable
; Interrupt disable
; j = End of processing
; End of initialization