PCF2119VU Просмотр технического описания (PDF) - Philips Electronics

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PCF2119VU

LCD controllers/drivers

Philips Electronics 

Philips Semiconductors

LCD controllers/drivers

Product specification

PCF2119X

9 EXTENDED FUNCTION SET INSTRUCTIONS AND

FEATURES

9.1 New instructions

H = 1, sets the chip into alternate instruction set mode.

9.2 Icon control

The PCF2119x can drive up to 160 icons. See Fig.19 for

CGRAM to icon mapping.

9.3 IM

When IM = 0, the chip is in character mode. In the

character mode characters and icons are driven

(MUX 1 : 18). The VLCD generator, if used, produces the

VLCD voltage programmed in register VA.

When IM = 1, the chip is in icon mode. In the icon mode

only the icons are driven (MUX 1 : 2) and the VLCD voltage

generator, if used, produces the VLCD voltage as

programmed in register VB.

9.4 IB

Icon blink control is independent of the cursor/character

blink function.

When IB = 0, icon blink is disabled. Icon data is stored in

CGRAM character 0 to 3 (4 × 8 × 5 = 160 bits for

160 icons).

When IB = 1, icon blink is enabled. In this case each icon

is controlled by two bits. Blink consists of two half phases

(corresponding to the cursor on and off phases called even

and odd phases hereafter).

Icon states for the even phase are stored in CGRAM

characters 0 to 3 (4 × 8 × 5 = 160 bits for 160 icons).

These bits also define the icon state when icon blink is not

used.

Icon states for the odd phase are stored in CGRAM

character 4 to 7 (another 160 bits for the 160 icons). When

icon blink is disabled CGRAM characters 4 to 6 may be

used as normal CGRAM characters.

Table 10 Blink effect for icons and cursor character blink

PARAMETER

Cursor character blink

Icons

EVEN PHASE

block (all on)

state 1: CGRAM character 0 to 2

ODD PHASE

normal (display character)

state 2: CGRAM character 4 to 6

2003 Jan 30

30

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