mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 1015

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

HPC—Horizontal Pixel Count
This field specifies the number of pixels per line adjusted by panel type and bits per pixel.
Use Table 18-2 to program the value for this field.
WBL—Wait Between Lines
To achieve the best display quality, this field can be used as an adjustable parameter to
modify the resultant image. This field represents the wait period between lines, which are
measured in SHIFT/CLK cycles. The total number of wait cycles between lines (TWBL) is
equal to WBL+N, where:
TWBL is used to calculate HSYNC timing in Section 18.3.9.3 Active Interface.
N = 7 in configurations in which the panel type is a passive monochrome with a 4 bit
N = 5 for all other configurations.
1-Bit Monochrome, 2-/4-Bit Grayscale
4-/8-Bit Color Passive
4-/8-Bit Color Active (TFT)
NOTE: H indicates the number of pixels per line.
BITS PER PIXEL/PANEL TYPE
data bus configured with two or four bits per pixel. BPIX = 01 or 10, CLOR = 0,
TFT = 0, and LBW = 0 as defined in the LCCR.
Table 18-2. Horizontal Pixel Count Programming
Freescale Semiconductor, Inc.
For More Information On This Product,
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
12 BIT
—
—
H
SINGLE-SCAN
LCD PANEL TYPE/DATA WIDTH
1/8 * H
3/8 * H
8-BIT
—
1/4 * H
3/4 * H
4-BIT
—
1/4 * H
3/4 * H
8-BIT
—
DUAL-SCAN
LCD Controller
1/2 * H
4-BIT
—
—
18-23