M
ODEL
SL599 V
ERSION
V_1.0
P
REPARED BY
H/W
D
ATE
2007.04.11
S
UBJECT
T
ECHNICAL
M
ANUAL
P
AGE
24/52
SL599
T
ECHNICAL
M
ANUAL
fractional ratio. Refer to the Figrue9 Image resizer block diagram. The maximum size of a pixel based source
image is only 2047x2047.
Figure 17. Overview of Image Resizer.
6.4
NAND Flash interface
MT6227 provides NAND flash interface. The NAND Flash interface support features as follows.
-
ECC(Hamming Code) acceleration capable of one-bit error correction or two bits error detection.
-
Programmable ECC block size. Support 1.2 or 4ECC block with in a page
-
Word/byte access through APB bus.
-
Direct memory Access for massive data transfer..
-
Latch sensitive interrupt to indicate ready state for read, program, erase operation and error report.
-
Support Page size : 512(528) bytes and 2048(2112) bytes.
-
Support 2 chip select for NAND flash parts.
-
Support 8/16bits I/O Interface.
-
Support LCD Data interface together.
-
Used 7 control Signal : NRE#, NEW#,NCE#,NALE, WATCHDOG#,NCLE, NRNB.
6.5
USB Device controller
MT6219 provides a USB function interface that is in compliance with Universal Serial Bus Specification Rev
1.1. The USB device controller supports only full-speed(12Mbps) operation. The cellular phone can make use of
this widely available USB interfaces to transmit/receive data with USB host, typically PC.
The USB device uses cable-powered feature for the transceiver but only drains little current. An external
resistor(nominally 1.5kohm) is required to be placed across Vusb and DP Signal. Two additional external serial
resistors might be needed to be placed on the output of DP and DM signals to make the output impedance
equivalent to 28~44ohm. Also, USB cable can be used to Charger for 5V input.
The ADC4_USB is to monitor whether USB cable is inserted or not.
