Samsung S3F80JB manual User Program Mode, Tool Program Mode, Pin No Function

EMBEDDED FLASH MEMORY INTERFACE S3F80JB

User Program Mode

This mode supports sector erase, byte programming, byte read and one protection mode (Hard Lock Protection). The S3F80JB has the internal pumping circuit to generate high voltage. Therefore, 12.5V into Vpp (TEST) pin is not needed. To program a flash memory in this mode several control registers will be used.

There are four kind functions in user program mode – programming, reading, sector erase, and one protection mode (Hard lock protection).

Tool Program Mode

This mode is for erasing and programming full area of flash memory by external programming tools. The 6 pins of S3F80JB are connected to a programming tool and then internal flash memory of S3F80JB can be programmed by Serial OTP/MTP Tools, SPW2 plus single programmer or GW-PRO2 gang programmer and so on. The other modules except flash memory module are at a reset state. This mode doesn’t support the sector erase but chip erase (all flash memory erased at a time) and two protection modes (Hard lock protection/ Read protection). The read protection mode is available only in tool program mode. So in order to make a chip into read protection, you need to select a read protection option when you write a program code to a chip in tool program mode by using a programming tool. After read protect, all data of flash memory read “00”. This protection is released by chip erase execution in the tool program mode.

Table 15-1. Descriptions of Pins Used to Read/Write the Flash in Tool Program Mode

Normal Chip				During Programming
Pin Name	Pin Name		Pin No.	I/O	Function
P3.0	SDAT		3[30]	I/O	Serial data pin. Output port when reading and
					input port when writing. SDAT (P3.0) can be
					assigned as an input or push-pull output port.
P3.1	SCLK		4[31]	I	Serial clock pin. Input only pin.
TEST	TEST		9[4]	I	Tool mode selection when TEST pin sets Logic
					value ‘1’. If user uses the flash writer tool mode
					(ex.spw2+ etc.), user should connect TEST pin to
					VDD. (S3F80JB supplies high voltage 12.5V by
					internal high voltage generation circuit.)
nRESET	nRESET		12[7]	I	Chip Initialization
VDD,	VDD,		5[32],	–	Power supply pin for logic circuit.
V	V	SS	6[1]		VDD should be tied to +3.3 V during programming.
SS

NOTE: [ ] means 32SOP package.

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