STV5730A STMicroelectronics, STV5730A Datasheet - Page 12

• Manufacturer Part Number: STV5730A
• Description: Multimedia Misc On-Screen Display
• Manufacturer: STMicroelectronics
• Type: Satellite Receiverr

Specifications of STV5730A

• Maximum Operating Temperature: + 150 C
• Mounting Style: SMD/SMT
• Package / Case: SO
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STV5730A
2.2 - The Write Pointer
2.2.1 - Address Map
PAGE
ROW ATTRIBUTES : STRU[7:6] = 11 - BUF[11:8] = 0 - DEPL[4:0] from 0 to 10
REGISTERS
12/20
FUNCTIONAL DESCRIPTION (continued)
Figure 2
As described in the ”message format” paragraph,
an address consists of three fields : STRU[7:6],
BUF[11:8], DEPL[4:0].
The STRU[7:6] field indicates whether it is a PAGE
address or a ROW ATTRIBUTE / REGISTER ad-
dress. It also determines the address incrementa-
tion scheme.
- STRU[7:6] = 00 :
DATA
CLK
CSN
DATA
CLK
CSN
DATA
CLK
CSN
It is a PAGE address. BUF provides the row
number (from 0 to 10) and DEPL provides the
character number (from 0 to 27). DEPL is incre-
: ROW 0 : STRU[7:6] = 0 or 1 - BUF[11:8] = 0 - DEPL[4:0] from 0 to 27
: STRU[7:6] = 11 - BUF[11:8] = 0
15
7
ROW 1 : STRU[7:6] = 0 or 1 - BUF[11:8] = 1 - DEPL[4:0] from 0 to 27
.........
ROW 10 : STRU[7:6] = 0 or 1 - BUF[11:8] = 10 - DEPL[3:0] from 0 t0 27
DEPL[4:0] = 12 for ZOOM register, 13 for COLOR register,
14
6
: .................
14 for CONTROL register, 15 for POSITION register,
16 for MODE register
13
5
12
4
- STRU[7:6] = 01 :
- STRU[7:6] = 11 :
.....................
3
mented after each data message. When the write
of a row is completed, the write pointer is auto-
matically set to the next row first character.
It is also a PAGE address but the incrementation
scheme is a bit different : when the write of a row
is completed, the write pointer is automatically
set to the first character of the same row.
It is a row attribute or a register address.The BUF
field must be set to 0000 and the DEPL field is
incremented after each data access.
2
2
................
1
1
0
0
MESSAGE
MESSAGE
MESSAGE
16-BIT
8-BIT
0-BIT