Renesas M3A-HS85 2.3.4 EEPROM

Functional Overview

2.3.4 EEPROM

Rev.1.04 2008.7.10 2-6

REJ10J1564-0104

2.3.4 EEPROM

The M3A-HS85 can mount the 128k-bits of EEPROM (Not mounted). The EEPROM is controlled by the I2C bus

interface included in SH7285.

Table 2.3.3 lists the specification outline of EEPROM.

Figure 2.3.3 shows the connection circuit block diagram of SH7285 and EEPROM.

Table 2.3.3 EEPROM Specification Outline

Part Number Interface Capacity Package

HN58X24128FPIE 2-wire system serial (I2C bus)*128k bit (16k-word x 8-bit) 8-pin SOP

Figure 2.3.3 Block Diagram of SH7285 and EEPROM

Note*: I2C bus is a trademark of Koninklijke Philips Electronics N. V.

Contents

Main REJ10J1564-0104 Rev. 1.04 Issued: Jul 15, 2008 Renesas 32-Bit RISC Microcomputers SuperHTM RISCengine Family / SH7285 Group M3 SH7285 CPU Board A -HS85 User's Manual Notes regarding these materials Table of Contents Page Page Overview 1.1 Overview 1.2 Configuration Overview 1.3 External Specifications Overview 1.4 External View Overview 1.5 M3A-HS85 Block Diagram SH7285 SH7285 CPU Board M3A-HS85 Page Page Overview 1.7 M3A-HS85 Memory Mapping Page Page Overview 1.8 Absolute Maximum Ratings 1.9 Recommended Operating Conditions Page Page Page Functional Overview 2.2 CPU Rev.1.04 2008.7.10 2-3 REJ10J1564-0104 2.2 CPU SH7285 Functional Overview 2.3 Memory 2.3.1 SH7285 On-Chip Memory 2.3.2 SRAM 2.3.3 SDRAM SH7285 SDRAM 2.3.4 EEPROM Functional Overview SH7285 2.4 Serial Port Interface Functional Overview 2.5 I/O Ports 2.5 I/O Ports Rev.1.04 2008.7.10 2-9 REJ10J1564-0104 Table 2.5.1 Functions of I/O Ports 2.5 I/O Ports Rev.1.04 2008.7.10 2-10 REJ10J1564-0104 Note *: Connected only when the 0 resistance is mounted. Functional Overview SH7285 Functional Overview 2.7 USB Interface Figure 2.7.1 Block Diagram of USB Interface Rev.1.04 2008.7.10 2-12 REJ10J1564-0104 SH7285 Output from a oscillator connected to EXTAL of the SH7285 Functional Overview 2.9 Reset Module 2.10 Interrupt Switches Functional Overview 2.11 E10A-USB Interface Page Page Operational Specifications 3.1 M3A-HS85 Connectors Outline 3.1.1 H-UDI Connector (J1, J2) Page 3.1.2 Serial Port Connector (J3) 3.1.3 Power Supply Connector (J4) 3.1.4 External Power Supply Connector for SH7285 (J5, J6) 3.1.5 DC Power Jack (J7) 3.1.6 Extension Connectors (J8-J12) Page 3.1.6 Extension Connectors (J8-J12) Rev.1.04 2008.7.10 3-11 REJ10J1564-0104 Note : Only when SRAM and SDRAM are mounted. Page Page 3.1.6 Extension Connectors (J8-J12) Rev.1.04 2008.7.10 3-14 REJ10J1564-0104 Note : Only when SRAM and SDRAM are mounted. 3.1.7 Extension Connector (J13) 3.1.8 USB Connector (J14) 3.1.9 GND Connector (J15) Top view of the component side Board edge Operational Specifications 3.2 Outline of Switches and LEDs 3.2.1 CPU Power Supply Select Jumpers (JP1) 3.2.2 External Power Supply Select Jumper (JP2, JP3, JP4, JP5) 3.2.3 FWE Pin Select Jumper (JP6) 3.2.4 Serial Port Select Jumper (JP7, JP8) 3.2.5 Switch and LED Functions Page 3.2.6 Jumper Switch Setting when Using Development Tool Operational Specifications 3.3 Board Dimensions of M3A-HS85 Page Page SH7285 CPU Board M3A-HS85 SCHEMATICS SH7285 [12.5MHz:CPU] DIP Type (COM) Serial EEPROM SDRAMSRAM SDRAM 16bit access = 16MB R1LV1616RSA-7SR USB Connector USB B for SP3232E Serial Port Connector(COM) UART connector mount hole = GND Power On Reset H-UDI Interface E8a Board fixed hole. DrVCC EXTERNAL SH7285 Extension Connector A/D Connector NMI SWITCH NMI SWITCH CIRCUIT IRQ1 SWITCH