XM33C321ASPZR datasheet(38/122 Pages) TI2

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Table 6-19. Unified Communication Module (UniComm) Signal Descriptions (continued)

SIGNAL NAME

TYP

DESCRIPTION

PFA PIN

PZ PIN

PN PIN

PM PIN

RGZ PIN ZAW PIN YSG PIN

UC14_SDA_TX

IOD Unified Communication

Module UC14: I2C SDA or

UART TX signal

84, 88

E5, H1

UC13_0_PICO_SDA_

IOD Unified Communication

Module UC13: 0 or SPI

PICO or I2C SDA or UART

TX signal

31, 42,

43, 46,

53, 66,

70, 78,

84, 98

31, 42,

43, 46,

53, 66,

70, 78,

84, 98

26, 32,

33, 36,

43, 51,

55, 63,

69, 78

11, 21,

30, 60,

61, 64, 7

22, 23,

29, 33, 46

C2, D7,

F9, G10,

G7, H1,

H3, H4,

K3, K8

D4, E1,

E3, E5,

H2, K6,

P4, V2,

V4, V6

UC13_0_POCI_RTS

Unified Communication

Module UC13: 0 or SPI

POCI or UART RTS signal

26, 30,

41, 48,

52, 55,

81, 93

26, 30,

41, 48,

52, 55,

81, 93

21, 25,

31, 38,

42, 45,

66, 73

2, 25, 53,

59, 6

21, 24,

28, 44

B8, B9,

E2, F4,

F8, H7,

J9, K10

A3, A5,

M2, N1,

N7, P2,

P6, R5

UC13_0_SCLK_SCL

_RX

IOD Unified Communication

Module UC13: 0 or SPI

SCLK or I2C SCL or UART

RX signal

32, 42,

43, 47,

52, 65,

69, 79,

85, 94

32, 42,

43, 47,

52, 65,

69, 79,

85, 94

27, 32,

33, 37,

42, 50,

54, 64,

70, 74

1, 10, 22,

26, 6, 60,

22, 23,

28, 32, 45

A10, D1,

F9, G1,

G3, G7,

H10, H5,

K10, K4

B4, H6,

J3, K2,

K4, N1,

P4, T2,

UC13_1_PICO_SDA_

IOD Unified Communication

Module UC13: 1 or SPI

PICO or I2C SDA or UART

TX signal

12, 25,

49, 73,

76, 92

12, 25,

49, 73,

76, 92

20, 39,

58, 61, 72

14, 17,

24, 3, 52

25, 36,

39, 43

D5, D9,

E1, G8,

J2, K2

A1, G3,

G5, J7,

UC13_1_POCI_RTS

Unified Communication

Module UC13: 1 or SPI

POCI or UART RTS signal

15, 24,

26, 94

15, 24,

26, 94

10, 19,

21, 74

26, 42,

51, 53

15, 45, 8

A5, B8,

D1, D8

G7, H6,

P6, T8

UC13_1_SCLK_SCL

_RX

IOD Unified Communication

Module UC13: 1 or SPI

SCLK or I2C SCL or UART

RX signal

13, 33,

50, 74,

77, 93

13, 33,

50, 74,

77, 93

28, 40,

59, 62, 73

15, 18,

25, 4, 56

18, 26,

37, 40, 44

B6, E2,

E7, H2,

J8, K1

A5, B2,

C1, R1,

UC13_2_PICO_SDA_

IOD Unified Communication

Module UC13: 2 or SPI

PICO or I2C SDA or UART

TX signal

44, 93

34, 73

25, 62

E2, F10

A5, T4

UC13_2_POCI_RTS

Unified Communication

Module UC13: 2 or SPI

POCI or UART RTS signal

47, 77

37, 62

1, 18

H10, H2

B2, T2

UC13_2_SCLK_SCL

_RX

IOD Unified Communication

Module UC13: 2 or SPI

SCLK or I2C SCL or UART

RX signal

45, 92

35, 72

24, 63

E1, G9

G5, R3

UC13_3_PICO_SDA_

IOD Unified Communication

Module UC13: 3 or SPI

PICO or I2C SDA or UART

TX signal

2, 30, 37,

2, 25, 78

30, 34

2, 46

B9, C2,

C4, F6

D6, E5,

UC13_3_POCI_RTS

Unified Communication

Module UC13: 3 or SPI

POCI or UART RTS signal

15, 32, 4,

10, 27, 4,

31, 36, 42 47, 8

A10, A5,

B2, B3

B8, C9,

UC13_3_SCLK_SCL

_RX

IOD Unified Communication

Module UC13: 3 or SPI

SCLK or I2C SCL or UART

RX signal

1, 14, 29,

1, 24, 74

26, 33

1, 45, 7

D1, D3,

D6, E8

C7, H6,

UC13_0_CS0_CTS

Unified Communication

Module UC13: 0 or SPI

CS0 or UART CTS signal

25, 29,

51, 65,

80, 92, 98

25, 29,

51, 65,

80, 92, 98

20, 24,

41, 50,

65, 72, 78

24, 30, 5,

27, 43, 46 C2, D9,

E1, E8,

G4, H5,

J10

C3, E5,

G5, J7,

K2, M6,

UC13_1_CS0_CTS

Unified Communication

Module UC13: 1 or SPI

CS0 or UART CTS signal

17, 23, 70 17, 23, 70 12, 18, 55 11, 44, 50 10, 14, 33 A7, C8,

E1, N9,

MSPM33C321A, MSPM33C3219

SLASFB6A – DECEMBER 2025 – REVISED SEPTEMBER 2026

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XM33C321ASPZR Datasheet(PDF) 38 Page - Texas Instruments

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