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參數(shù)資料
| 型號： | SAA4995WP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | Panorama-IC (PAN-IC)(全景畫面IC) |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC44 |
| 封裝： | PLASTIC, SOT-187, LCC-44 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大小： | 107K |
| 代理商： | SAA4995WP |
1997 Jun 10
11
Philips Semiconductors
Preliminary specification
PANorama-IC (PAN-IC)
SAA4995WP
MICROCONTROLLER BUS TIMING (SNERT BUS)
MICROCONTROLLER BUS CONTROL (SNERT BUS)
The following control table applies (Table 5), for control via the microcontroller bus (SNERT bus, consisting of SNCL,
SNDA and VRST signals). Data communication is by writing to the PAN-IC (address 40H to 48H) and reading from it
(address 49H)
Table 5
SNERT-bus control
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
700
UNIT
μ
s
ns
ns
ns
ns
T
cy(SNCL)
t
su(i)
t
h(i)
t
h(o)(D)
t
d
SNCL cycle time
input data set-up time
input data hold time
output data hold time
output data delay time
see Fig.7
see Fig.7
see Fig.7
see Fig.7
see Fig.7
1
90
50
0
ADDRESS
(HEX)
FUNCTION
# OF BITS
BIT
POSITION
REMARKS
40
X
1l
8
7 : 0
definition of X
1l
with a resolution of 4 samples; see Fig.3 and
note 1
definition of X
0l
with a resolution of 4 samples; see Fig.3 and
note 1
definition of X
0r
with a resolution of 4 samples; see Fig.3 and
note 1
definition of X
1r
with a resolution of 4 samples; see Fig.3 and
note 1
resolution of 4 luminance samples; actual #
samples = (programmed # samples + 1)
×
4; note 2
41
X
0l
8
7 : 0
42
X
0r
8
7 : 0
43
X
1r
8
7 : 0
44
output samples
per line
8
7 : 0
Fig.7 SNERT bus interface timing.
handbook, full pagewidth
MGK181
SNCL
LSB
SNDA
(receiver
mode)
SNDA
(transmitter
mode)
data
data
data
data
data
tsu(i)
th(i)
th(o)(D)
td
Tcy(SNCL)
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