SDA5250 Datasheet, PDF (14/143 Pages) Siemens Semiconductor Group – TVTEXT 8-Bit Microcontroller

SDA 525x
Table 1
Pin Functions (ROM- and ROMless-Version) (cont’d)
Symbol Pin No.
P-SDIP-
52-1
Pin No. Pin No. Pin No. Input (I) Function
P-MQFP- P-MQFP- P-LCC-84- Output (O)
64-1
80-1
2
Supply (S)
HS/SC 45
16
54
46
VS/P4.7 46
18
55
47
CVBS 30
60
74
68
P4.0 14
41
18
9
P4.1 –
–
20
11
I
Horizontal sync input (alternative
sandcastle sync input) for display
I/O
Vertical sync input for display
(alternative Port 4.7)
I
CVBS (video signal) input
I/O
Port 4.0 is a bidirectional I/O port
I/O
with internal pullup resistors. Port 4
pins that have 1s written to them are
pulled high by the internal pullup
resistors and in that state can be
used as inputs.
Attention: P4.0 must not be kept to
‘0’ during reset, otherwise a special
test mode will be activated.
I_REF
29
59
73
67
I
Reference current input for slicer
PLLS
V_DDA 28
58
72
66
V_SSA 24
54
68
62
FIL1 26
56
70
64
S
Analog Supply Voltage for Slicer
and ADC
S
Analog Ground for Slicer and ADC
I/O
PLL loop filter I/O for TTX slicing
FIL2 27
57
71
65
I/O
PLL loop filter I/O for VPS/WSS
slicing
FIL3 25
55
69
63
I/O
PLL loop filter I/O for
TTX/VPS/WSS data slicing
LCIN 38
7
LC-OUT 39
8
52
44
I
53
45
O
LCIN and LCOUT are used to
connect the external display dot
clock frequency reference.
Semiconductor Group
14
1998-04-08