beautypg.com

Tc user interface – Rainbow Electronics AT75C220 User Manual

Page 106

background image

AT75C220

106

TC User Interface

TC Base Address: 0xFF014000

TC_BCR and TC_BMR control the TC block. TC channels are controlled by the registers listed in Table 25. The offset of
each of the channel registers in Table 25 is in relation to the offset of the corresponding channel as stated in Table 24.

Note:

1. Read only if WAVE = 0

Table 24. TC Global Memory Map

Offset

Register Name

Channel/Register

Access

Reset Value

0x00

See Table 25

TC Channel 0

See Table 25

0x40

See Table 25

TC Channel 1

See Table 25

0x80

See Table 25

TC Channel 2

See Table 25

0xC0

TC_BCR

TC Block Control Register

Write-only

0xC4

TC_BMR

TC Block Mode Register

Read/write

0

Table 25. TC Channel Memory Map

Offset

Register Name

Description

Access

Reset Value

0x00

TC_CCR

Channel Control Register

Write-only

0x04

TC_CMR

Channel Mode Register

Read/write

0

0x08

Reserved

0x0C

Reserved

0x10

TC_CVR

Counter Value Register

Read/write

0

0x14

TC_RA

Register A

Read/write

(1)

0

0x18

TC_RB

Register B

Read/write

(1)

0

0x1C

TC_RC

Register C

Read/write

0

0x20

TC_SR

Status Register

Read-only

0x24

TC_IER

Interrupt Enable Register

Write-only

0x28

TC_IDR

Interrupt Disable Register

Write-only

0x2C

TC_IMR

Interrupt Mask Register

Read-only

0