-18-
N2SL
CPU PORT FUNCTIONS
(continued page 4 of 5)
U1
VDD_CORE0
Digital core supply (+1.8 V)
U2
VSSA_RGB0
Analog supply ground
U3
IN_R
Analog Red colour input (scaler)
U4
REF_R
Reference voltage Red
U23
R/PrIN3
3rd R input / PR input
U24
INSSW3
3rd RGB / YPRPB insertion input
U25
N/C
N / A
Not Connected
U26
N/C
N / A
Not Connected
V 1
VDD3V3_RGB0
Analog supply voltage (+3.3 V)
V 2
VDDA1V8_ADC_R
Analog supply voltage for ADC (+1.8 V)
V 3
VDD3V3_LPLL
LPLL Supply voltage (+3.3 V)
V 4
VSSA_ADC_R
Analog supply ground for ADC
V 2 3
B/PbIN3
3rd B input / PB input
V 2 4
G/YIN3
3rd G input / Y input
V 2 5
N/C
N / A
Not Connected
V 2 6
N/C
N / A
Not Connected
W1
VDD1V8_LPLL
Analog supply voltage (+1.8 V)
W2
VSSA_CLEAN_LPLL
LPLL supply ground (clean)
W3
VSSA_LPLL
Analog supply ground
W4
N/C
N / A
Not Connected
W23
BLKIN
Test signal, Do not connect
W24
BCLIN
Beam current limiter input
W25
N/C
N / A
Not Connected
W26
N/C
N / A
Not Connected
Y1
AHS
5 V TTL
Horizontal / Composite sync
Y2
AVS
5 V TTL
Vertical Sync
Y3
N/C
N / A
Not Connected
Y4
VDD_CORE01
Digital Supply
Digital 1V8 supply used for core logic
Y23
GO
Green output
Y24
RO
Red output
Y25
BO
Blue output
Y26
N/C
N / A
Not Connected
A A 1
ASCL/GPIO14
DDC clock 400 kHz, general purpose I/O
A A 2
ASDA/GPIO15
DDC data 400 kHz, general purpose I/O
A A 3
VDD_IO1
Digital Supply
Digital 3V3 supply used for I/Os
A A 4
N/C
N / A
Not Connected
A A 2 3
P1.1/T0
Port 1.1 or Counter Timer 0 input
A A 2 4
P1.0/INT1
Port 1.0 or external interrupt 1
A A 2 5
INT0/P0.5
External interrupt 0 or port 0.5 (4mA sinking capability for direct drive of
LEDs)
A A 2 6
N/C
N / A
Not Connected
AB1
N/C
N / A
Not Connected
AB2
VDD_CORE1
Digital Supply
Digital 1V8 supply used for core logic
AB3
N/C
N / A
Not Connected
AB4
D4
5 V TTL
Memory data bus
AB23
N/C
N / A
Not Connected
AB24
N/C
N / A
Not Connected
AB25
N/C
N / A
Not Connected
AB26
N/C
N / A
Not Connected
AC1
N/C
N / A
Not Connected
AC2
IAPMUTE
5 V TTL
Control signal for in-circuit emulation
AC3
D6
5 V TTL
Memory data bus
AC4
VSS_IO0
Digital Ground
Digital 3V3 ground used for I/Os
AC5
A0/CFG0
5 V TTL
Memory address bus, config pins for boot strap
AC6
A5/CFG5
5 V TTL
Memory address bus, config pins for boot strap
AC7
RDPSEN_N
5 V TTL
Memory read enable, program store enable
AC8
VDD_CORE1
Digital Supply
Memory read enable, program store enable
AC9
A14/CFG14
5 V TTL
Memory address bus, config pins for boot strap
AC10
N/C
N / A
Not Connected
AC11
VSS_CORE21
Digital Ground
Common digital core 1V8 ground
AC12
VSS_IO11
Digital Ground
Digital 3V3 ground used for I/Os
AC13
N/C
N / A
Not Connected
AC14
VDD_CORE3
Digital Supply
Digital 1V8 supply used for core logic
AC15
VDD_CORE51
Digital Supply
Digital 1V8 supply used for core logic
AC16
N/C
N / A
Not Connected
AC17
VDDC2
Digital Supply
Digital 1V8 supply used for core logic
AC18
P0.2/I2SDO2
Port 0.2 or I2S digital output 2
AC19
P1.7/SDA
Port 1.7 or I2C bus data line
AC20
VDDP
Supply to periphery and on chip voltage regulator (+3.3 V)
AC21
VDDC1
Digital Supply
Digital 1V8 supply used for core logic
AC22
DECV1V8
Decoupling 1.8 V supply
AC23
VDDC3
Digital Supply
Digital 1V8 supply used for core logic
AC24
N/C
N / A
Not Connected
AC25
N/C
N / A
Not Connected
AC26
N/C
N / A
Not Connected
ROW AC
ROW U
ROW AB
ROW V
ROW W
ROW Y
ROW AA
