Texas Instruments MSP50C6xx manual Signal and Pad Descriptions for the MSP50C604

Mechanical Information

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
	38	40	I	Initialization
RESET
		Power Signals
V	17, 50, 90, 100†	32, 52, 9, 19†		Ground
SS
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.

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