UPSD3253B-24T1T datasheet(7/175 Pages) STMICROELECTRONICS

Part #	UPSD3253B-24T1T

Description	Flash Programmable System Devices with 8032 Microcontroller Core

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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UPSD3254A, UPSD3254BV, UPSD3253B, UPSD3253BV

Description of the UCON0 Bits (Table 70.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92

USB Endpoint1 (and 2) Transmit Control Register (UCON1: 0EBh) (Table 71.). . . . . . . . . . . . . . . 93

Description of the UCON1 Bits (Table 72.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

USB Control Register (UCON2: 0ECh) (Table 73.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Description of the UCON2 Bits (Table 74.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

USB Endpoint0 Status Register (USTA: 0EDh) (Table 75.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Description of the USTA Bits (Table 76.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94

USB Endpoint0 Data Receive Register (UDR0: 0EFh) (Table 77.) . . . . . . . . . . . . . . . . . . . . . . . . . 94

USB Endpoint0 Data Transmit Register (UDT0: 0E7h) (Table 78.) . . . . . . . . . . . . . . . . . . . . . . . . 94

USB Endpoint1 Data Transmit Register (UDT1: 0E6h) (Table 79.) . . . . . . . . . . . . . . . . . . . . . . . . 94

USB SFR Memory Map (Table 80.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Low Speed Driver Signal Waveforms (Figure 44.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Receiver Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Differential Input Sensitivity Over Entire Common Mode Range (Figure 45.) . . . . . . . . . . . . . . . . . 97

External USB Pull-Up Resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

USB Data Signal Timing and Voltage Levels (Figure 46.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Receiver Jitter Tolerance (Figure 47.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Differential to EOP Transition Skew and EOP Width (Figure 48.) . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Differential Data Jitter (Figure 49.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Transceiver DC Characteristics (Table 81.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100

Transceiver AC Characteristics (Table 82.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 0

PSD MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101

PSD MODULE Block Diagram (Figure 50.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

In-System Programming (ISP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103

Methods of Programming Different Functional Blocks of the PSD MODULE (Table 83.) . . . . . . . 103

DEVELOPMENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

PSDsoft Express Development Tool (Figure 51.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

PSD MODULE REGISTER DESCRIPTION AND ADDRESS OFFSET . . . . . . . . . . . . . . . . . . . . . . . 105

Register Address Offset (Table 84.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

PSD MODULE DETAILED OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

MEMORY BLOCKS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Primary Flash Memory and Secondary Flash memory Description . . . . . . . . . . . . . . . . . . . . 106

Memory Block Select Signals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106

Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107

Instructions (Table 85.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108

Power-down Instruction and Power-up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

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