HCS370IP datasheet(8/36 Pages) MICROCHIP

8 / 36 page

HCS370

DS41111D-page 8

Preliminary

2002 Microchip Technology Inc.

3.0

EEPROM ORGANIZATION

A summary of the HCS370 EEPROM organization is

shown in the three tables below. The address column

shows the starting address of the option, and its length

or bit position. Options larger than 8 bits are stored

with the Most Significant bits at the given address.

Enough consecutive 8-bit blocks are reserved for the

entire option size. Options such as SEED1, which

have a length that is not an exact multiple of 8 bits, is

stored right justified in the reserved space. Additional

smaller options such as SDBT1 may be stored in the

same address as the Most Significant bits.

TABLE 3-1:

ENCODER1 OPTIONS (SHIFT = 0)

Symbol

Address

16:Bits

Description(1)

Reference

Section

KEY1

1E: 64 bits

Encoder Key

3.2.2

SEED1

14: 60 bits

Encoder Seed Value

3.3

SYNC1

00: 20 bits

00: 18 bits

Encoder Synchronization Counter (CNTSEL=1)

Encoder Synchronization Counter (CNTSEL=0) plus overflow

3.2, 3.2.1

SER1

10: 32 bits

Encoder Serial Number

3.2.2

DISC1

1C: 10 bits

Encoder Discrimination value

3.2, 3.2.1

MSEL1

1C: ---- 32--

Transmission Modulation Format

Value

Format

4.1

PWM

Manchester

VPWM

PPM

HSEL1

1C: ---4 ----

Header Select

TE = 0

TE = 1

4.1

XSER1

1C: --5- ----

Extended Serial Number

28 bits = 0

32 bits = 1

3.2

QUEN1

1C: -6-- ----

Queue counter Enable

Disable = 0

Enable = 1

5.6

STEN1

1C: 7--- ----

START/STOP Pulse Enable

Disable = 0

Enable = 1

4.1

LEDBL1

3F: -6-- ----

Low Voltage LED Blink

Never = 0

Once = 1

5.3

LEDOS1

3F: 7--- ----

LED On Time Select(1)

50 ms = 0

100 ms = 1

5.3

SDLM1

3C: ---- ---0

Limited Seed

Disable = 0

Enable = 1

3.3

SDMD1

3C: ---- --1-

Seed Mode

User = 0

Production = 1

3.3

SDBT1

14: 7654 ----

Seed Button Code

3.3

SDTM1

3C: ---- 32--

Time Before Seed Code Word(1)

Value

Time (s)

3.3

0.0

0.8

1.6

3.2

BSEL1

3C: --54 ----

Transmission Baud Rate Select(1)

Value

TE (

µs)

4.1

100

200

400

800

GSEL1

3C: 76-- ----

Guard Time Select(1)

Value

Time (ms)

4.1, 5.2

2 TE

6.4

51.2

102.4

Note 1:

All Timing values vary ±10%.

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