Texas Instruments MSP50C6xx - Manual (Page 372)

Mechanical Information
7-6
Table 7–4. Signal and Pad Descriptions for the MSP50C604
SIGNAL PIN NUMBER PAD NUMBER I/O DESCRIPTION
Input/Output Ports
PC0 – PC7 89 – 82 8 – 1 I/O Port C general-purpose I/O (1 Byte)
PD0 – PD7 99 – 92 18 – 11 I/O Port D general-purpose I/O (1 Byte)
PE0 – PE7 46 – 39 48 – 41 I/O Port E general-purpose I/O (1 Byte)
PF0 – PF7 16 – 9 31 – 24 I Port F dedicated input (1 Byte)
Pins PD4 and PD5 may be dedicated to the comparator function, if the comparator enable bit is set.
Refer to Section 3.3, Comparator, for details.
Scan Port Control Signals
SCANIN 37 39 I Scan port data input
SCANOUT 33 35 O Scan port data output
SCANCLK 36 38 I Scan port clock
SYNC 35 37 I Scan port synchronization
TEST 34 36 I C605: test modes
The scan port pins must be bonded out on any MSP50C604 production board.
Consult the “Important Note regarding Scan Port Bond Out”.
Reference Oscillator Signals
OSCOUT 49 51 O Resistor/crystal reference out
OSCIN 48 50 I Resistor/crystal reference in
PLL 47 49 O Phase-lock-loop filter
Digital-to-Analog Sound Outputs
DACP 7 22 O Digital-to-analog plus output (+)
DACM 5 20 O Digital-to-analog minus output (–)
Initialization
RESET 38 40 I Initialization
Power Signals
VSS 17, 50, 90, 100† 32, 52, 9, 19† Ground
VDD 6†, 8, 31, 32, 91 21†, 23, 33, 34, 10 Processor power (+)
† The VSS and VDD connections service the DAC circuitry. Their pins tend to sustain a higher current draw. A dedicated decoupling
capacitor across these pins is therefore required.