sed1355 ETC-unknow, sed1355 Datasheet - Page 451

• Manufacturer Part Number: sed1355
• Description: Sed1355 Embedded Ramdac Lcd/crt Controller
• Manufacturer: ETC-unknow

Epson Research and Development
Vancouver Design Center
4.5 MPC821 Chip Select Configuration
Interfacing to the Motorola MPC821 Microprocessor
Issue Date: 99/05/05
Chip select 4 is used to control the SED1355. The following options are selected in the base
address register (BR4):
• BA[0:16] = 0000 0000 0100 0000 0 – set starting address of SED1355 to 40 0000h.
• AT[0:2] = 0 – ignore address type bits.
• PS[0:1] = 1:0 – memory port size is 16-bit.
• PARE = 0 – disable parity checking.
• WP = 0 – disable write protect.
• MS[0:1] = 0:0 – select General Purpose Chip Select module to control this chip select.
• V = 1 – set valid bit to enable chip select.
The following options were selected in the option register (OR4):
• AM[0:16] = 1111 1111 1100 0000 0 – mask all but upper 10 address bits; SED1355
• ATM[0:2] = 0 – ignore address type bits.
• CSNT = 0 – normal CS/WE negation.
• ACS[0:1] = 1:1 – delay CS assertion by ½ clock cycle from address lines.
• BI = 0 – do not assert Burst Inhibit.
• SCY[0:3] = 0 – wait state selection; this field is ignored since external transfer acknowl-
• SETA = 1 – the SED1355 generates an external transfer acknowledge using the WAIT#
• TRLX = 0 – normal timing.
• EHTR = 0 – normal timing.
consumes 4M byte of address space.
edge is used; see SETA below.
line.
X23A-G-008-03
SED1355
Page 19